Study on the dynamic tensile behavior of the cold-rolled and CSP press-hardening thin steel sheets
In order to make an investigation on the comparison of dynamic tensile properties,both cold-rolled and CSP hot-rolled press-hardening steel sheet blanks were austenized and quenched at a same cooling rate through a same tool,which resulted in as-quenched microstructures with approximate 100 ％ of Martensite.Then,the dynamic tensile tests were conducted at strain rotes from 0.005 to 333/s.The results of the tensile tests indicated that both cold-rolled and CSP hot-rolled press-hardening steels had the same hardening properties during tension and were both insensitive to the strain rate.
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NSTL
万方数据
维普
