skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of volume fraction of stress-induced {var_epsilon} martensite in Fe-32Mn-6Si alloy

Abstract

Fe-Mn-Si alloy has drawn much attention due to its shape memory effect and damping capacity which are based on {gamma} {leftrightarrow} {var_epsilon} non-thermoelastic transformation. Thermoelastic martensitic alloys like Ni-Ti undergo complete transformation if they are cooled below Mf temperature. In a Fe-Mn-Si alloy, however, the volume fraction of {var_epsilon} martensite below Mf depends on its heat treatment condition because of the incomplete non-thermoelastic transformation. Thus measurement of the volume fraction of {epsilon} martensite is necessary to correlate it with some physical and mechanical properties. In this work, the authors propose a new way of measuring the volume fraction of stress-induced {epsilon} martensite based on the volume expansion accompanying {var_epsilon} {yields} {gamma} transformation. Cold rolling is applied to generate anisotropic {var_epsilon} martensite, and the length change is measured in the RD, TD and ND during heating. Dilatometric behavior in the three directions and variation in the volume fraction are investigated with various degrees of cold rolling.

Authors:
;  [1];  [2]; ;  [3]
  1. Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Div. of Metals
  2. Woojin OSK Corp., Kyunggi (Korea, Republic of). Research Inst. of Measuring Technology
  3. Yonsei Univ., Seoul (Korea, Republic of). Dept. of Metallurgical Engineering
Publication Date:
OSTI Identifier:
136937
Resource Type:
Journal Article
Journal Name:
Scripta Metallurgica et Materialia
Additional Journal Information:
Journal Volume: 33; Journal Issue: 12; Other Information: PBD: 15 Dec 1995
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IRON BASE ALLOYS; MICROSTRUCTURE; MANGANESE ALLOYS; SILICON ALLOYS; TERNARY ALLOY SYSTEMS; CRYSTAL-PHASE TRANSFORMATIONS; TEMPERATURE DEPENDENCE; ROLLING; SLIP; DISLOCATIONS; TRANSMISSION ELECTRON MICROSCOPY; EXPERIMENTAL DATA

Citation Formats

Jee, K K, Shin, M C, Baik, S H, Lee, B J, and Choi, C S. Measurement of volume fraction of stress-induced {var_epsilon} martensite in Fe-32Mn-6Si alloy. United States: N. p., 1995. Web. doi:10.1016/0956-716X(95)00453-3.
Jee, K K, Shin, M C, Baik, S H, Lee, B J, & Choi, C S. Measurement of volume fraction of stress-induced {var_epsilon} martensite in Fe-32Mn-6Si alloy. United States. https://doi.org/10.1016/0956-716X(95)00453-3
Jee, K K, Shin, M C, Baik, S H, Lee, B J, and Choi, C S. Fri . "Measurement of volume fraction of stress-induced {var_epsilon} martensite in Fe-32Mn-6Si alloy". United States. https://doi.org/10.1016/0956-716X(95)00453-3.
@article{osti_136937,
title = {Measurement of volume fraction of stress-induced {var_epsilon} martensite in Fe-32Mn-6Si alloy},
author = {Jee, K K and Shin, M C and Baik, S H and Lee, B J and Choi, C S},
abstractNote = {Fe-Mn-Si alloy has drawn much attention due to its shape memory effect and damping capacity which are based on {gamma} {leftrightarrow} {var_epsilon} non-thermoelastic transformation. Thermoelastic martensitic alloys like Ni-Ti undergo complete transformation if they are cooled below Mf temperature. In a Fe-Mn-Si alloy, however, the volume fraction of {var_epsilon} martensite below Mf depends on its heat treatment condition because of the incomplete non-thermoelastic transformation. Thus measurement of the volume fraction of {epsilon} martensite is necessary to correlate it with some physical and mechanical properties. In this work, the authors propose a new way of measuring the volume fraction of stress-induced {epsilon} martensite based on the volume expansion accompanying {var_epsilon} {yields} {gamma} transformation. Cold rolling is applied to generate anisotropic {var_epsilon} martensite, and the length change is measured in the RD, TD and ND during heating. Dilatometric behavior in the three directions and variation in the volume fraction are investigated with various degrees of cold rolling.},
doi = {10.1016/0956-716X(95)00453-3},
url = {https://www.osti.gov/biblio/136937}, journal = {Scripta Metallurgica et Materialia},
number = 12,
volume = 33,
place = {United States},
year = {1995},
month = {12}
}