温度对TRIP钢动态拉伸性能的影响  

Effect of Temperature on Dynamic Tensile Behavior of TRIP Steel

作　　者：孙鹏[1] 李麟[1] 韦习成[1] 史文[1] 

机构地区：[1]上海大学材料学院,上海200072

出　　处：《金属热处理》2003年第10期11-15,共5页Heat Treatment of Metals

基　　金：国家自然科学基金 (5 0 1710 38)

摘　　要：在自制的冲击拉伸试验机上对低硅 TRIP钢的动态力学性能进行了研究。试验结果表明 ,在应变率 ε=135 0s- 1± 5 0s- 1,试验温度 5 0℃～ 80℃范围内不仅伸长率上升 ,而且强度提高。最大均匀伸长率eu 与总伸长率et 分别达到 15 6 %和 32 1% ,最大抗拉强度σb 为 938MPa 。The dynamic tensile properties of TRIP steel with reduced silicon(Si=0 62%) were concluded with high speed tensile impact tester.The results illustrated that the elongation and tensile strength have been all elevated in a temperature range(50℃～80℃) at the strain ratio =1350s 1 ±50s -1 .The largest uniform elongation e u was 15 6%,total elongation e t was 32 1% respectively and tensile strength σ b reached 938 MPa.Good combination of strength and toughness can be achieved under such conditions.

关 键 词：相变诱发塑性钢 温度 拉伸性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG115.5[金属学及工艺—金属材料]