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Published on: April 4, 2017
Effects of Deformation Parameters on Phase Transformation of B1500HS High-Strength Steel During the Non-Isothermal
1School of Intelligent Vehicle Engineering, Luoyang Institute of Science and Technology, Luoyang 471000, China.
Abstract:
To investigate the effects of deformation parameters on the phase transformation of B1500HS high-strength steel, non-isothermal deformation tests were conducted on a Thermomaster-Z thermal mechanical simulator under different conditions in this study. Qualitative and quantitative investigations were carried out by analyzing the dilatation curves, color metallograph, and hardness data of deformed specimens. The results indicate that deformation can promote the formation of non-martensite. Higher initial deformation temperature and lower strain are beneficial for obtaining more martensite in the deformed high-strength steel and leading to higher martensite transformation temperatures. Meanwhile, the variation of strain rate has relatively small effects on the content and transformation temperature of martensite, and the effects do not show a singular trend.
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