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The deposition of particles onto a substrate during the cold spraying (CS) process relies on severe plastic deformation, so there are various micro-defects induced by insufficient deformation and severe crushing. To solve the problems, many post-treat techniques have been used to improving the quality by eliminating the micro-defects. This paper aims to help scholars and engineers in this field a better and systematic understand of CS technology by summarizing the post-treatment technologies that have been investigated recently years.

This review summarizes the types of micro-defects and introduces the effect of micro-defects on the properties of CS coating/additive manufactured, illustrates the post-treatment technologies and its effect on the microstructure and performances, and finally outlooks the future development trends of post-treatments for CS.

There are significant discoveries in post-treatment technology to change the performance of cold spray deposits. There are also many limitations for post-treatment methods, including improved performance and limitations of use. Thus, there is still a strong requirement for further improvement. Hybrid post-treatment may be a more ideal method, as it can eliminate more defects than a single method. The proposed ultrasonic impact treatment could be an alternative method, as it can densify and flatten the CS deposits.

It is the first time to reveal the influence factors on the performances of CS deposits from the perspective of microdefects, and proposed corresponding well targeted post-treatment methods, which is more instructive for improving the performances of CS deposits.

Psychiatric patients’ post-treatment identities are one of the potent indicators reflecting the efficacy of the medical intervention. This study aims to explore how psychiatric patients construct their post-treatment social identities through a gender lens.

This study used a descriptive phenomenological approach, and in-depth interviews were undertaken on 29 informants with experience of psychiatric treatment for at least one year and who are in the remission stage. The lived experience of each informant was scrutinised, which covered how psychiatric post-treatment affects and alters their personal life, work and social relationships. Data collected were then analysed using thematic analysis.

The result found two mutually reinforced identities, namely, self-empowerment and resilience emerged from their experience with psychiatric post-treatment. Firstly, self-empowerment themes include acceptance of the disorders, meaningful choices, assertiveness and helping others. Such self-empowerment attributes enabled them to negotiate with the doctors during the treatment and also with their family members and partners. Secondly, psychiatric post-treatment allows them to be resilient; their good feeling of being liberated from the symptoms while allowing them to partake in a normal lifestyle. Meanwhile, gender differences were found to have diverse meaning-making that positively impacted their lives, particularly among female informants.

Firstly, the data collection was only made in two states in North Peninsular Malaysia; hence, it would be biased in this sense to generalize to a larger population. At the same time, a prevalent study could be undertaken to view the pervasiveness of mental illness among Malaysians. Secondly, the study did not investigate the social institutions that are linked to the relief of psychiatric patients in the country. Thus, there is a grey area on how at the systemic level aid is given to the patients and the impact of such action.

A rigour campaign on promoting mental health should be undertaken to create an inclusive environment for the patients. This is consistent with the aspiration of deinstitutionalization and the Shared Prosperity Vision 2030 agenda by the Malaysian government. This is a call for an allotment in special education, training, and funding, employment, housing and other aspects that are significant for their livelihood.

The findings discovered that their social environment primarily caused the depression suffered by the patients. The remark is particularly true for female informants who had very little control over their lives and bodies. Hence, health professionals should consider practicing cultural and gender-sensitive treatment for these patients. Such treatments are to avoid re-discriminating, or re-victimisation feelings to occur during the treatment.

Patients’ post-treatment social identity construction is seldom reported systematically through a gender lens. This study is one of the early efforts on gender lens that allow one to understand how it influences social structures and institutions, especially in the Malaysian realm.

The purpose of this paper is to investigate the post-treatment processes on lattice structures of selective laser melting. Moreover, the effect of pressure during hot isostatic pressing (HIP) is determined.

Three post-treatment processes, annealing at 650°C, 920°C and HIP were adopted. The microstructure evolution and mechanical properties of selective lasering melted Ti6Al4V lattice structures after post-treatment were systematically investigated by optical microscope, scanning electron microscope, electron backscattered diffraction, differential scanning calorimetry and quasi-static mechanics tests.

The main findings in this paper are as below: first, the pores existing in the samples as-fabricated, annealed at 650°C and 920°C are disappeared after HIP. Second, the microstructure and compressive properties after HIP are similar to that after pure annealing at the same temperature. However, the HIPed sample had the highest number of cycles to failure. Third, the fracture mechanism of as-fabricated samples changes from mixed fracture to the micro-voids accumulation fracture after post-treatment processes.

HIP post-treatment can be replaced by annealing at the same temperature when the requirement for porosity and fatigue life is not very high.

This study aims to evaluate and assess the elastoplastic properties of Ti-6Al-4V alloy manufactured by Arcam Q20 Plus electron beam melting (EBM) machine by a tensile test campaign and micro computerized tomography (microCT) imaging.

ASTM E8 tensile test specimens are designed and manufactured by EBM at an Arcam Q20 Plus machine. Surface quality is improved by machining to discard the effect of surface roughness. After surface machining, hot isostatic pressing (HIP) post-treatment is applied to half of the specimens to remove unsolicited internal defects. ASTM E8 tensile test campaign is carried out simultaneously with digital image correlation to acquire strain data for each sample. Finally, build direction and HIP post-treatment dependencies of elastoplastic properties are analyzed by F-test and t-test statistical analyses methods.

Modulus of elasticity presents isotropic behavior for each build direction according to F-test and t-test analysis. Yield and ultimate strengths vary according to build direction and post-treatment. Stiffness and strength properties are superior to conventional Ti-6Al-4V material; however, ductility turns out to be poor for aerospace structures compared to conventional Ti-6Al-4V alloy. In addition, micro CT images show that support structure leads to dense internal defects and pores at applied surfaces. However, HIP post-treatment diminishes those internal defects and pores thoroughly.

As a novel scientific contribution, this study investigates the effects of three orthogonal build directions on elastoplastic properties, while many studies focus on only two-build directions. Evaluation of Poisson’s ratio is the other originality of this study. Furthermore, another finding through micro CT imaging is that temporary support structures result in intense defects closer to applied surfaces; hence high-stress regions of structures should be avoided to use support structures.

To evaluate the effectiveness of an adaptation of Interpersonal Group Psychotherapy (IPT-G), in facilitating short- and longer-term improvements in eating disorder symptomology, psychosocial impairment, anxiety, depression and attachment difficulties among adults living with overweight and diagnosed with binge eating disorder (BED).

In total, 24 participants completed measures at the start of IPT-G, mid-treatment, discharge and six-month follow-up. Quantitative outcomes were analysed utilising one-way repeated measures analysis of variance.

Treatment retention was 100%. Significant improvements in binge-eating frequency, psychosocial impairment and depression were achieved at mid-treatment and maintained at post-treatment and six-month follow-up, and with large effect sizes. Attachment anxiety had reduced significantly at post-treatment and was maintained at six-month review. Body mass index (BMI) had stabilised by mid-treatment and was maintained at post-treatment and six-month follow-up. All hypotheses were supported, with the exception that attachment avoidance did not improve significantly and following a post-treatment reduction, anxiety symptoms deteriorated slightly by six-month follow-up, such that they were no longer significantly different from pre-treatment levels.

Despite being the most prevalent of the eating disorders (compared to anorexia nervosa and bulimia nervosa), BED is under-recognised and under-treated in clinical settings. Results indicate the sustained effectiveness of IPT-G in improving eating disorder and comorbid symptomology associated with BED.

This is the first UK study to investigate the effectiveness of IPT-G at treating BED. Unlike previous studies in the field, this study did not exclude participants based on age, BMI or psychiatric comorbidity.

Effective substance use treatment is a viable way to reduce criminal justice contact among drug-involved offenders, but there is still a lot to learn about which indicators have the greatest impact on treatment outcomes. The purpose of this paper is to determine which clinical indicators influenced the likelihood of rearrest among male drug-involved offenders.

This prospective longitudinal study examined indicators of 12-month post-treatment rearrest for male criminal justice-involved substance use treatment patients. Multinomial logistic regression results drawn from a sample of 1,531 adult male patients who were mandated to substance use treatment indicated that there were different factors related to the likelihood of one as well as multiple post-treatment arrests.

Demographic risk factors, such as age and unemployment, were associated with significant increases in the probability of experiencing an arrest within 12-months of treatment discharge. Substance use relapse was also a significant indicator of the likelihood of rearrest and contributed to an increase in the odds of one post-treatment rearrest as well as multiple rearrests. A drug dependence diagnosis, relative to a diagnosis for alcohol dependence, was associated with an increased likelihood of rearrest. Participation in outpatient treatment was associated with a lower likelihood of rearrest.

These findings emphasize the need for treatment providers to concentrate heavily on demographic risk reduction to minimize the chance that male patients are rearrested after treatment. Relapse prevention, on the other hand, is critical in the effort to minimize the number of post-treatment rearrests in this population.

The results from this study provide evidence to empirically support the refinement of substance treatment programs for male patients involved in the criminal justice system.

This study aims to investigate the effect of post-treatment on anti-corrosion performance of Al coating on the surface of Ti-6Al-4V (TC4) fastener.

The Al coatings with different layer structures were prepared on TC4 by middle-frequency and direct-current combined magnetron sputtering. The cross-sectional morphology and surface roughness of coatings were characterized by scanning electron microscope and atomic force microscope. The corrosion resistance was evaluated by electrochemical method. The monolayer coating was post-treated by Alodine chemical conversion, Ar⁺ bombardment and a combination of two methods above.

The results show that the interfaces in bilayer and trilayer coatings reduce the defects. Ar⁺ bombardment reduces the corrosion current density, and Alodine chemical conversion leads to a higher pitting corrosion potential. The combined post-treatment has the highest polarization resistance.

The corrosion resistance of the Al coating is enhanced as the layer quantity increases. The combination of two post-treatments, Ar⁺ bombardment and Alodine chemical conversion, could achieve an overall improvement in corrosion resistance of Al coating.

The purpose of this paper is to determine if neurolinguistic programming (NLP) tools and techniques were effective in alleviating the symptoms of posttraumatic stress disorder (PTSD) in clients from the Military and Emergency Services.

This project ran at the “Healing the Wounds” charity in Bridgend. All clients were opportunistic, having self-referred to a charity specifically set up to support Veterans from the Armed Forces. In total, 29 clients from an initial cohort of 106 clients provided pre and post data using Depression Anxiety Stress Scale (DASS) and the NLP Wheel of Life scale. Interventions included a range of NLP techniques, addressing self-reported symptoms.

Differences between DASS scores before and after treatment are very highly significant. t-test analysis infers that these results are indicative of the overall response from the clients in this study.

Limitations of the study include: client group; significant levels of incomplete data for the total study group; therapist effect and therapist training; treatment methodology.

Data suggest that NLP has potential as a therapeutic tool in the treatment of symptoms of anxiety and depression associated with a self-report of PTSD. An observation is proposed that these candidates experience an improvement in their emotional state when NLP is used which is statistically significant (p<0.001) both for overall DASS score averages and also for each of the three DASS categories (Depression, Anxiety and Stress). Stress was the highest scoring category prior to treatment for these clients; the reduction in their stress symptoms contributed most substantially to the overall reduction in average DASS score, indicating an improvement in their emotional state.

The currently existing restrictions regarding the deployment of additively manufactured components because of poor surface roughness, porosity and residual stresses as well as their influence on the low-cycle fatigue (LCF) strength are addressed in this paper.

This study aims to evaluating the effect of different pre- and post-treatments on the LCF strength of additively manufactured 316L parts. Therefore, 316L specimens manufactured by laser powder bed fusion were examined in their as-built state as well as after grinding, or coating with regard to the surface roughness, residual stresses and LCF strength. To differentiate between topographical effects and residual stress-related phenomena, stress-relieved 316L specimens served as a reference throughout the investigations. To enable an alumina coating of the 316L components, atmospheric plasma spraying was used, and the near-surface residual stresses and the surface roughness are measured and investigated.

The results have shown that the applied pre- and post-treatments such as stress-relief heat treatment, grinding and alumina coating have each led to an increase in LCF strength of the 316L specimens. In contrast, the non-heat-treated specimens predominantly exhibited coating delamination.

To the best of the authors’ knowledge, this is the first study of the correlation between the LCF behavior of additively manufactured uncoated 316L specimens in comparison with additively manufactured 316L specimens with an alumina coating.

This paper seeks to disseminate knowledge regarding the experiences of a student team in implementing a campus‐level sustainability initiative, outlining the strategy to measure the potential impact of this initiative.

Project design is a case study. Via interviewing and surveys, the study observed student and faculty attitudes, information levels and behaviors regarding sustainability both before and after project implementation. Calculated sustainability scores were calculated for both faculty and students. Data were collected with the intention of understanding first, if any changes occurred in these campus community members, and second, if changes occurred, could the changes be linked to the project.

Faculty experienced a significant increase in sustainability scores over the course of the project. Faculty interviews were used to glean a rich understanding of attitudes, information and behaviors about sustainability. A building waste audit was conducted to substantiate any self‐reported changes in recycling behavior. In contrast, students experienced either a significant decrease in sustainability scores or an insignificant decrease in sustainability scores. Large‐scale, campus‐wide behavioral changes of individuals did not take place. Some community members showcase sustainable behaviors, but for reasons not definitively linked with this project and its outreach.

This project serves as a stepping stone for other student teams; an opportunity to learn from our successes and mistakes, improving design of similar projects. General information about this type of project was discovered namely faculty and student participants were cooperative and outreach was not as extensive as imagined. The study also suggest future research could benefit from analyzing barriers to sustainable behaviors, addressing these in outreach for a similar project. Evaluating future projects to understand their effectiveness produces increasingly informative research.

This paper looks beyond the initial enthusiasm for conducting campus sustainability projects, shedding light on the ways they may effect the campus community.