对TRIP590和TRIP780两种强度级别的钢板进行了应变量为5％，10％，15％的拉伸预应变，通过静态拉伸试验和扫描电镜研究了拉伸预应变对钢中残余奥氏体含量和力学性能的影响。结果表明：随着预应变量的增加，钢中的残余奥氏体含量减少，马氏体转变；拉伸预应变提高了钢的抗拉强度和伸长率，随预应变量的增大，强度明显增加，塑性变化不大。
TRIP 590 and TRIP 780 steel were pre-stained by tension with strain of 5%, 10% and 15% respectively. The effects of tension pre-strain on retained autensite content and mechanical properties were studied by static tensile test and scanning electron microscopy. The results show that the content of retained austenite in steel reduced and transformed to martensite with increase of the pre-strain, the tensile pre-strain increased tensile strength and elongation of the steel. Strength increased obviously, but ductility changed a little with increase of pre-strain.
参考文献
| [1] | Bleck W.;Schael I. .Determination of crash-relevant material parameters by dynamic tensile tests[J].Steel Research,2000(5):173-178. |
| [2] | Dan WJ;Zhang WG;Li SH;Lin ZQ .A model for strain-induced martensitic transformation of TRIP steel with strain rate[J].Computational Materials Science,2007(1):101-107. |
| [3] | 孙鹏,李麟,韦习成,史文.温度对TRIP钢动态拉伸性能的影响[J].金属热处理,2003(10):11-15. |
| [4] | Yu Hai Yan;Gao Yun Kai;Meng De Jian .Transformation behavior of retained austenite under different deformation modes for low alloyed TRIP-assisted steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1/2):331-335. |
| [5] | Koh-ichi SUGIMOTO;Akinobu KANDA;Ryo KIKUCHI .Ductility and Formability of Newly Developed High Strength Low Alloy TRIP-aided Sheet Steels with Annealed Martensite Matrix[J].ISIJ International,2002(8):910-915. |
| [6] | Doege Eckart;Kulp Steffen;Sunderkotter Christina .Properties and application of TRIP-steel in sheet metal forming[J].Steel Research,2002(6/7):303-308. |
| [7] | Hai Yan Yu .Variation Of Elastic Modulus During Plastic Deformation And Its Influence On Springback[J].Materials & design,2009(3):846-850. |
| [8] | 余海燕,林忠钦,李淑慧,陈关龙.TRIP钢板在单向拉伸变形下的相变行为研究[J].材料科学与工艺,2004(04):433-435. |
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