Tae-Hoon Nam, Eunsol An
The present study is to investigate the effect of post heat treatment on the microstructures and mechanical properties of a submerged-arc-welded 304 stainless steel. The base material consisted of austenite and long strips of delta-ferrite surrounded by Cr-carbide, and the welds consisted of delta ferrite and austenite matrix. For the heat treatment at 850◦C or lower, Cr-carbides were precipitated in the weld metal resulting in the reduction of elongation. The strength, however, was slightly reduced despite the presence of Cr-carbides and this could possibly be explained by the relaxation of internal stress and the weakening of particle hardening. In the heat treatment at 1050 ◦C, the dissolution of Cr-carbide and disappearance of delta ferrite resulted in the lower yield strength and higher elongation partially assisted from deformation-induced martensitic transformation. Consequently, superior property in terms of fracture toughness was achieved by the heat treatment at 1050 ◦C, suggesting that the mechanical properties of the as-weld metal can be enhanced by controlling the post weld heat treatment.
@article{8f587466-daa6-4be4-a185-0dd6d7c1dd23,
title={Effect of Post Weld Heat Treatment on the Microstructure and Mechanical Properties of a Submerged-Arc-Welded 304 Stainless Steel},
author={Tae-Hoon Nam and Eunsol An},
year={2018},
language={English}
}TY - JOUR TI - Effect of Post Weld Heat Treatment on the Microstructure and Mechanical Properties of a Submerged-Arc-Welded 304 Stainless Steel AU - Tae-Hoon Nam AU - Eunsol An PY - 2018 LA - English ER -
Denis Pustovoytov, Alexander Pesin
Asymmetric sheet rolling is a process used when there are differences in any technological parameters in the horizontal plane across the width of the
Jean-Philippe Monchoux, Alain Couret
After a few decades of increasing interest, spark plasma sintering (SPS) has now become a mature powder metallurgy technique, which allows assessing i
Petro Loboda, Constantine Zvorykin
In this article, structural features of Ti-TiB and (α+β) Ti alloys in the initial state, in the weld and in the heat-affected zone of electron beam we
Damir Tomerlin, Dejan Mari´ c
During the manufacturing of welded structures, residual stresses are often present, and one common approach to mitigate these stresses is through Post
Xing Wang, Zhibin Yang
In this study, a 16 mm thick A710 low-alloy high-strength steel was welded by using flux-cored wire gas-shielded welding with an E81T1-Ni1M flux-cored
Christopher T. Richard, Tsz-Ho Kwok
This paper aims to design lattice structures for rapid-investment casting (RIC), and the goal of the design methodology is to minimize casting defects