The effect of heat treatment on the mechanical properties of a steel containing Mn and Al
碩士 === 國立中山大學 === 材料與光電科學學系研究所 === 102 === In this study, the alloy content of Mn and Al of a transformation-induced plasiticity (TRIP) steel was reduced in order to reduce the production cost of this steel. By using the right combination of hot rolling, cold rolling and heat treatments, an ultrafin...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2014
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| Online Access: | http://ndltd.ncl.edu.tw/handle/hm54k2 |
| Summary: | 碩士 === 國立中山大學 === 材料與光電科學學系研究所 === 102 === In this study, the alloy content of Mn and Al of a transformation-induced plasiticity (TRIP) steel was reduced in order to reduce the production cost of this steel. By using the right combination of hot rolling, cold rolling and heat treatments, an ultrafine-grained TRIP steel was developed. The microstructure and tensile property of this steel have been studied. EBSD was used to measure the grain size of this alloy, and the phase fractions of ferrite and austenite during tensile test. It was found that strain-induced martensitic transformation occurred during tensile test, which increase the work hardening rate so that postponed the occurring of necking, and a high elongation was obtained together with a high tensile strength.
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