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

Title: Effects of strain amplitude and temperature on the damping capacity of an Fe-19Mn alloy with different microstructures

Abstract

The influences of strain amplitude (10{sup -5}-10{sup -4}) and temperature (25 deg. C-500 deg. C) on the internal friction of a cold-drawn and solution treated Fe-19Mn alloy were investigated. The internal friction was measured using reversal torsion pendulum and multifunction internal friction equipment. The microstructure was observed using scanning electron microscopy. The phase transformation temperatures were determined using differential scanning calorimetry. The results indicated that the internal friction of the solution treated alloy was related to strain amplitude, which could be explained using the movement of Shockley partial dislocations (bowing out and breaking away). But the internal friction of the cold-drawn alloy was independent of strain amplitude because of high density dislocations formed by cold forming. Moreover, when the temperature was changed between 25 deg. C and 500 deg. C, the internal friction of the cold-drawn alloy increased slowly from 25 deg. C to 375 deg. C, and then increased quickly from 375 deg. C to 500 deg. C. However, for the solution treated alloy, there was an internal friction peak at about 210 deg. C in the heating process (from 25 deg. C to 500 deg. C), and there was another internal friction peak at about 150 deg. Cmore » in the cooling process. These peaks could be explained using the heat-assisted movement of dislocations. - Research Highlights: {yields}Internal friction of solution treated Fe-19Mn alloy is related to strain amplitude. {yields}Internal friction of cold-drawn Fe-19Mn alloy is independent of strain amplitude. {yields}IF of cold-drawn alloy increases from RT to 500 deg. C. {yields}There is an IF peak of solution treated alloy in heating and cooling process separately. {yields}The results can be explained using the movement of dislocations.« less

Authors:
;  [1]; ; ;  [2]
  1. Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China)
  2. School of Manufacturing Science and Engineering, Sichuan University, Chengdu, Sichuan 610065 (China)
Publication Date:
OSTI Identifier:
22066243
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 61; Journal Issue: 11; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALORIMETRY; DISLOCATIONS; HEATING; INTERNAL FRICTION; IRON BASE ALLOYS; MANGANESE ALLOYS; MARTENSITE; MICROSTRUCTURE; PHASE TRANSFORMATIONS; SCANNING ELECTRON MICROSCOPY; STRAINS; TEMPERATURE DEPENDENCE

Citation Formats

Huang Shuke, E-mail: huangshuke@163.com, Danchen, Zhou, Jianhui, Liu, Jin, Teng, Ning, Li, and Yuhua, Wen. Effects of strain amplitude and temperature on the damping capacity of an Fe-19Mn alloy with different microstructures. United States: N. p., 2010. Web. doi:10.1016/J.MATCHAR.2010.08.001.
Huang Shuke, E-mail: huangshuke@163.com, Danchen, Zhou, Jianhui, Liu, Jin, Teng, Ning, Li, & Yuhua, Wen. Effects of strain amplitude and temperature on the damping capacity of an Fe-19Mn alloy with different microstructures. United States. https://doi.org/10.1016/J.MATCHAR.2010.08.001
Huang Shuke, E-mail: huangshuke@163.com, Danchen, Zhou, Jianhui, Liu, Jin, Teng, Ning, Li, and Yuhua, Wen. 2010. "Effects of strain amplitude and temperature on the damping capacity of an Fe-19Mn alloy with different microstructures". United States. https://doi.org/10.1016/J.MATCHAR.2010.08.001.
@article{osti_22066243,
title = {Effects of strain amplitude and temperature on the damping capacity of an Fe-19Mn alloy with different microstructures},
author = {Huang Shuke, E-mail: huangshuke@163.com and Danchen, Zhou and Jianhui, Liu and Jin, Teng and Ning, Li and Yuhua, Wen},
abstractNote = {The influences of strain amplitude (10{sup -5}-10{sup -4}) and temperature (25 deg. C-500 deg. C) on the internal friction of a cold-drawn and solution treated Fe-19Mn alloy were investigated. The internal friction was measured using reversal torsion pendulum and multifunction internal friction equipment. The microstructure was observed using scanning electron microscopy. The phase transformation temperatures were determined using differential scanning calorimetry. The results indicated that the internal friction of the solution treated alloy was related to strain amplitude, which could be explained using the movement of Shockley partial dislocations (bowing out and breaking away). But the internal friction of the cold-drawn alloy was independent of strain amplitude because of high density dislocations formed by cold forming. Moreover, when the temperature was changed between 25 deg. C and 500 deg. C, the internal friction of the cold-drawn alloy increased slowly from 25 deg. C to 375 deg. C, and then increased quickly from 375 deg. C to 500 deg. C. However, for the solution treated alloy, there was an internal friction peak at about 210 deg. C in the heating process (from 25 deg. C to 500 deg. C), and there was another internal friction peak at about 150 deg. C in the cooling process. These peaks could be explained using the heat-assisted movement of dislocations. - Research Highlights: {yields}Internal friction of solution treated Fe-19Mn alloy is related to strain amplitude. {yields}Internal friction of cold-drawn Fe-19Mn alloy is independent of strain amplitude. {yields}IF of cold-drawn alloy increases from RT to 500 deg. C. {yields}There is an IF peak of solution treated alloy in heating and cooling process separately. {yields}The results can be explained using the movement of dislocations.},
doi = {10.1016/J.MATCHAR.2010.08.001},
url = {https://www.osti.gov/biblio/22066243}, journal = {Materials Characterization},
issn = {1044-5803},
number = 11,
volume = 61,
place = {United States},
year = {Mon Nov 15 00:00:00 EST 2010},
month = {Mon Nov 15 00:00:00 EST 2010}
}