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Prediction of heat affected zone and other mechanical properties of welded joints of HSLA A588-B of jet blast deflector

Utkarsh Waghmare (Department of Mechanical Engineering, Visvesvaraya National Institute of Technology, Nagpur, India)
A.S. Dhoble (Department of Mechanical Engineering, Visvesvaraya National Institute of Technology, Nagpur, India)
Ravindra Taiwade (Department of Metallurgical and Materials Engineering, Visvesvaraya National Institute of Technology, Nagpur, India)
Jagesvar Verma (Department of Manufacturing Engineering, National Institute of Foundry and Forge Technology, Ranchi, India)
Himanshu Vashishtha (Department of Mechanical Engineering, ABES Institute of Technology, Ghaziabad, India)

World Journal of Engineering

ISSN: 1708-5284

Article publication date: 6 July 2019

Abstract

Purpose

The purpose of this paper is to predict and optimize the width of heat affected zone (HAZ) with better mechanical properties using suitable welding process and parameters for the fabrication of jet blast deflector (JBD) (high strength low alloy material of grade A588-B was used for fabrication) so that the JBD can sustain high exhaust parameters, because there are different welding zones formed due to the rapid cooling of weld metals. Out of the various zones of welding, HAZ remains the weakest zone in the entire weldment.

Design/methodology/approach

The present work describes the modeling, simulation, Modeling of three-dimensional plate and mess generation process are carried out using ICEM CFD software. FLUENT 16.0 software is used for ANSYS simulation where various models are used for analysis and results are validated with the experimental outcomes. High strength low alloy plates are welded by using shielded metal arc welding and tungsten inert gas (TIG) welding processes with two different electrodes. Optical microscopy and scanning electron microscopy were used for metallurgical study. The mechanical properties were evaluated by tensile strength test, vickers microhardness test and impact test. The corrosion resistance was evaluated by performing the potentiodynamic polarization test.

Findings

The present study indicated for better mechanical properties and improved corrosion resistance for TIG welded joints with type 308 L filler.

Practical implications

In aeronautical, defense, space and research organizations.

Originality/value

It can be shown from the scanning electron microscope technique that sound weld joint is produced with very good mechanical properties and joint also showed better corrosion resistance.

Keywords

Acknowledgements

The authors would like to thank M/s Anand Mine Tools Pvt. Ltd, Nagpur, India for giving an opportunity to work on the project and helping us with the essential data required for fabrication and simulations.

Citation

Waghmare, U., Dhoble, A.S., Taiwade, R., Verma, J. and Vashishtha, H. (2019), "Prediction of heat affected zone and other mechanical properties of welded joints of HSLA A588-B of jet blast deflector", World Journal of Engineering, Vol. 16 No. 4, pp. 438-444. https://doi.org/10.1108/WJE-08-2018-0281

Publisher

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Emerald Publishing Limited

Copyright © 2019, Emerald Publishing Limited