메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
Jeong Min Kim (Hanyang University) Sokyun Hong (Hanyang University) Kyung Jong Lee (Hanyang University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.29 No.2
발행연도
2023.2
수록면
259 - 268 (10page)
DOI
10.1007/s12540-022-01228-2

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
The additivity rule is beneficial when kinetics between the isothermal and non-isothermal (usually continuous cooling) phasetransformation is interrelated. When isothermal transformation (Time Temperature Transformation (TTT)) follows the Johnson–Mehl–Avrami equationX = 1 − exp−kTTTnTTTTTT, even though the reaction exponent is a function of temperature, ifnTTT is larger than 1.0 , as happens in pearlite transformation, it is confirmed that isothermal kinetics is derived from continuouscooling kinetics by the same approach proposed by Ozawa, if the additivity rule is applicable. In this case, the ContinuousCooling Transformation (CCT) with cooling rate q, is described by X = 1 − exp {−[J∕q]nTTT } , where J = ∫ TeqT k1∕nTTTTTT dT . It issuggested that the additivity rule is applicable when the difference between J(T) from TTT (i.e. JTTT (T) ) and J(T) from CCT(i.e. JTTT←CCT(T) ) is within experimental error. Both TTT and CCT are measured for austenite decomposition to pearlite ineutectoid steel. Considering the error of both CCT and TTT experiments, pearlite transformation is proved to be partiallyadditive. When temperatures are from 610 to 640 °C, pearlite transformation is additive. However, when the temperature is650 °C or above, pearlite transformation is non-additive due to a change of the transformation mechanism, which is confirmedby the isokinetic condition using the Master Curve Method.

목차

등록된 정보가 없습니다.

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0