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Impact Toughness and Softening of the Heat Affected Zone of High Heat Input Welded 390 MPa Yield Strength Grade TMCP Steel
항복강도 390 MPa급 가공열처리강 대입열용접 열영향부 충격인성 및 연화현상

Kook-Soo Bang, Young-Ho Ahn, Hong-Chul Jeong
방국수, 안영호, 정홍철

Korean J. Met. Mater. 2018;56(11):796-804. Published online 2018 Nov 5
DOI: https://doi.org/10.3365/KJMM.2018.56.11.796

Abstract
The Charpy impact toughness of the heat affected zone (HAZ) of electro gas welded 390 MPa yield strength grade steel, manufactured by a thermo mechanically controlled process, was investigated. The effects of added Nb on the toughness of the steel and the factors influencing scatter in toughness are discussed in..... More

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