서지주요정보
2상 스텐레스 강에서 σ상의 석출 거동에 미치는 시효 열처리 온도의 영향 = Effect of aging temperature on the precipitation bc[e]havior of σ-phase in a duplex stainless steel
서명 / 저자 2상 스텐레스 강에서 σ상의 석출 거동에 미치는 시효 열처리 온도의 영향 = Effect of aging temperature on the precipitation bc[e]havior of σ-phase in a duplex stainless steel / 김홍덕.
저자명 김홍덕 ; Kim, Hong-Deuk
발행사항 [서울 : 한국과학기술원, 1989].
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소장정보

등록번호

4105928

소장위치/청구기호

학술문화관(문화관) 보존서고

MNE 8904

SMS전송

도서상태

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반납예정일

초록정보

The effect of aging temperature on the morphology of $\sigma$-phase in a ferrite-austenite ($\delta-\gamma$) duplex stainless steel was investigated with Fe-26Cr-6Ni-3Mo alloy. An attempt was made to express the rate of precipitation of $\sigma$-phase with conventional kinetic equations. The TTT diagram for the $\sigma$-phase precipitation after solution treated at 1050°C for 1hr was constructed. The TTT diagram was C-type with a nose at about 850°C and the time required for 1% $\sigma$-phase precipitation was within 10 minutes. The $\sigma$-phase nucleated predominently on the $\delta/\gamma$ interface and subsequently grew into the adjacent $\delta$ grains as a eutectoid decomposition of $\delta$-phase into $\sigma$ - and $\gamma$-phase ($\delta\to\sigma+\gamma$), resulting in a $\sigma/\gamma$ duplex structure. On aging at 700°C, 750°C, and 800°C, the growth of $\sigma$-phase was analogous to the growth of $\sigma/\gamma$ lamellar structure and the lamellar structure was finer at lower aging temperature. However, at 900°C above nose, the growth of $\sigma$-phase was the expansion of the domain of $\sigma$-phase instead of the $\sigma/\gamma$ lamellae. The kinetics of $\sigma$-phase precipitation during aging treatment followed approximately the Johnson-Mehl equation.

서지기타정보

서지기타정보
청구기호 {MNE 8904
형태사항 [iv], 38 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Hong-Deuk Kim
지도교수의 한글표기 : 김인섭
지도교수의 영문표기 : In-Sup Kim
학위논문 학위논문(석사) - 한국과학기술원 : 핵공학과,
서지주기 참고문헌 : p. 36-38
주제 Steel, Stainless.
Percipitation (Chemistry)
스테인리스 강. --과학기술용어시소러스
시효 처리. --과학기술용어시소러스
이상강. --과학기술용어시소러스
석출 (금속) --과학기술용어시소러스
Aging.
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