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Subject

Influence of Gadolinium Addition on Mechanical and Corrosion Properties of 2205 Duplex Stainless Steel
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가돌리늄 첨가에 따른 2205 듀플렉스 스테인레스 강의 기계적 및 부식 특성 변화

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Type
Academic journal
Author
Lim, Jae-han (한국생산기술연구원) Ahn, Ji-Ho (한국생산기술연구원) Moon, Byung-Moon (한국생산기술연구원) Kim, Young-Jig (성균관대학교)
Journal
한국주조공학회 한국주조공학회지 (주조) 한국주조공학회지 제35권 제6호 KCI Accredited Journals
Published
2015.1
Pages
163 - 169 (7page)

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Influence of Gadolinium Addition on Mechanical and Corrosion Properties of 2205 Duplex Stainless Steel
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Abstract· Keywords

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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 $20^{\circ}C$, $20^{\circ}C$ and $15^{\circ}C$, respectively.

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