발간논문

Home > KJMM 논문 > 발간논문

Vol.32, No.3, 306 ~ 313, 1994
Title
A Study on Hot Deformation Behavior of Invar Alloy
조상현Sang Hyun Cho, 장병록Byoung Lok Jang, 김희중Hi Jung Kim, 유연철Yeon Chul Yoo
Abstract
The high temperature deformation behavior of an lnvar alloy was investigated in the temperature range of 800∼1100℃ at the strain rate range of 4.0×10^(-2)∼2.6×10^0/sec. Flow curves and microstructures exhibited this alloy had restoration by dynamic recrystallization combined with dynamic recovery. The temperature(T) and strain rate(ε˙) dependence of the peak stress (σ) was described by the Zener-Hollomon parameter, Z=ε˙ exp(-335kJ/RT)=A[sinh(0.0103α)]^(4 96). The size of dynamically recrystallized grains decreased as Z increases. The distribution of precipitates (Mn, Cr, etc.) was also investigated. The strain induced precipitation was occurred during the hot deformation.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.