Y. Chen
金属学报(英文版)
The effects of finishing rolling temperature and coiling temperature on retained austen-ire were studied for hot-rolled transformation induced plasticity (TRIP) steels withdifferent carbon content. The experimental results showed that an appropriate volumefraction of retained austenite from 6% to 11% could be obtained according to the dif-ferent carbon content less than 0.20% by controlled finishing rolling and coiling forthe hot-rolled TRIP steels. It can be concluded that carbon content has a significanteffect on the fraction of retained austenite and coiling processing plays stronger roleon retaining austenite than fishing rolling processing.
关键词:
TRIP steel
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Y. Chen
金属学报(英文版)
A hot-rolled deep drawing (HDD) steel with high r-value and uniform distribution of{ 111} texture in thickness was developed by hot rolling in ferrite region with lubricatingbetween the roller and the steel. The experimental results show that the carbon contentand finish rolling temperature have significant effects on beneficial texture {111}, andlubricating during hot rolling at low temperature in α-region makes the distributionof the texture uniform. Three basic requirements needed to meet for HDD steel wereconcluded by comparing different carbon contents and hot rolling processes.
关键词:
ultra low carbon
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Y. Chen
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X. Chen
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Q.F. Wang
金属学报(英文版)
The systematic chemical compositions including common C, Si, Mn, Al, and micro- alloying elements of Ti and Nb were designed for high volume fraction of retained austenite as much as possible. The thermo-cycle experiments were conducted by using Gleeble 2000 thermo-dynamic test machine for finding the appropriate composition. The experimental results showed that chemical composition had a significant effect on retained austenite, and the appropriate compositions were determined for commercial production of TRIP steels.
关键词:
carbon content
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