가돌리늄 첨가에 따른 2205 듀플렉스 스테인레스 강의 기계적 및 부식 특성 변화

This study reports the influence of gadolinium (Gd) addition on mechanical and corrosion properties of 2205 duplex stainless steel. In all alloys produced, regardless of the initial Gd content, Gd-based inclusions were well distributed in the duplex stainless steel matrix. As the Gd content increase...

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Bibliographic Details
Published in한국주조공학회지 Vol. 35; no. 6; pp. 163 - 169
Main Authors 임재한, Jae Han Lim, 안지호, Ji Ho Ahn, 문병문, Byung Moon Moon, 김영직, Young Jig Kim
Format Journal Article
LanguageKorean
Published 한국주조공학회 31.12.2015
Subjects
Duplex stainless steel
Gadolinium
Impact property
Microstructure
Rare earth metal
Tensile property
금속공학
Gadolinium
Impact property
Duplex stainless steel
Rare earth metal
Tensile property
Microstructure
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ISSN1598-706X
2288-8381

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Summary:This study reports the influence of gadolinium (Gd) addition on mechanical and corrosion properties of 2205 duplex stainless steel. In all alloys produced, regardless of the initial Gd content, Gd-based inclusions were well distributed in the duplex stainless steel matrix. As the Gd content increased from 0 wt% to 0.19 wt%, the ultimate tensile strength and hardness of the alloy increased from 630 MPa to 977 MPa and from 57 to 61, respectively, while elastic modulus, tensile elongation and impact energy of the alloy decreased. The critical crevice temperatures of Alloy1, Alloy2 and Alloy3 were 20oC, 20oC and 15oC, respectively.
Bibliography:The Korean Foundrymen`s Society
KISTI1.1003/JNL.JAKO201506959396661
G704-000509.2015.35.6.003
ISSN:1598-706X
2288-8381