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Jang-ho Ahn 1 Article
93 Formation Behavior of δ Ferrite Within LB and GTA Weld Zones of Mod. 9Cr-1Mo Steel in Terms of Thermal History
Mod. 9Cr-1Mo강 LB 및 GTA 용접부 열이력에 따른 δ 페라이트 생성거동
Nam-hun Jung, Jang-ho Ahn, Myung-jin Lee, Nam-hyun Kang, Kyung-Mox Cho
정남훈, 안장호, 이명진, 강남현, 조경목
Korean J. Met. Mater. 2018;56(2):93-102.   Published online 2018 Feb 5
DOI: https://doi.org/10.3365/KJMM.2018.56.2.93

The toughness and creep strength of Mod. 9Cr-1Mo steel, a ferritic heat resistant steel, are closely related to the amount of delta ferrite remaining in the weld. This study compared the amount of retained δ ferrite in the laser beam (LB) weld with low heat input and the gas tungsten..... More

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