Mechanical Properties and Retained Austenite Transformation Mechanism of TRIP-Aided Polygonal Ferrite Matrix Seamless Steel Tube

钢铁研究学报(英文版), 2011, 18(8): 73-78.

Mechanical Properties and Retained Austenite Transformation Mechanism of TRIP-Aided Polygonal Ferrite Matrix Seamless Steel Tube

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1.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China

2.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China

3.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China

基金项目: Fundamental Research Funds for Central Universities of China(N100607002) Key Project of National Eleventh Five Year Research Program of China(2006BAE03A08)

关键词：残余奥氏体 , 无缝钢管 , 铁素体 , 多边形 , 力学性能 , 转变机制 , 跳闸 , 基体

Mechanical Properties and Retained Austenite Transformation Mechanism of TRIP-Aided Polygonal Ferrite Matrix Seamless Steel Tube

Keywords： TRIP steel , retained austenite , austempering , heat treatment ,

Through the comparison of microstructure for polygonal ferrite （PF） matrix transformation induced plasticity （TRIP） seamless steel tube at different positions before and after tensile rupture, the transformation behavior of retained austenite （RA） was studied. The results showed that there were no yield points in tensile process and the splendid elongation and tensile strength were contributed by the uniform ferrite/bainite grains and the transformation of RA. The stability of RA was to some extent in inverse proportion with the ability of transformation induced plas ticity. The coarse retained austenite located in ferrite and ferrite/bainite laths were all transformed into martensite during the tensile process.

参考文献

[1]	Zackay V F;Parker E R;Fahr D et al.The Enhancement of Ductility on High Strength Steels[J].Trans of ASM,1967,60(02):252.
[2]	M. De MEYER .The Influence of the Substitution of Si by Al on the Properties ofCold Rolled C-Mn-Si TRIP Steels[J].ISIJ International,1999(8):813-822.
[3]	De Meyer M;Vanderschueren D;De Cooman B C.The Influence of AI on the Properties of Cold Rolled C Mn Si TRIP Steels[A].Bal timore:ISS,1999:265.
[4]	Hulka K;Bleck W;Papamantellos K.Relationship Between Heat Treatment Conditions,Microstructure and Properties of Niobium Microalloyed TRIP Steel[A].Baltimore:ISS,1999:67.
[5]	Bleck W.Using the TRIP Effect-the Draw of a Promising Group of Cold Formable Steels[A].Bad Harzhurg:GRIPS,2002:13.
[6]	Sakuma Y;Matlock D K;Krauss G .Intercritically Annealed and Isothermally Transformed 0.15pct C Steels Containing 1.2pct Si--1.5 pct Mn and 4 pct Ni:Part II Effect of Testing Temperature in Stress-Strain Behavior and Deforfnation Induced Austenite Transformation[J].Metallurgical and Materials Transactions,1992,23A:1233.
[7]	Koh ichi Sugimoto;Noboru Usui;Mitsuyuki Kobayashi et al.Effects of Volume Fraction and Stability of Retained Austenite on Ductility of TRIP-Aided Dual-Phase Steels[J].ISIJ International,1992,32(12):1311.
[8]	Koh ichi Sugimoto;Tsutomu Iida;Jyunya Sakaguchi et al.Retained Austenite Characteristics and Tensile Properties in a TRIP Type Bainitic Sheet Steel[J].ISIJ International,2000,9(40):902.

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材料期刊网

Mechanical Properties and Retained Austenite Transformation Mechanism of TRIP-Aided Polygonal Ferrite Matrix Seamless Steel Tube

Mechanical Properties and Retained Austenite Transformation Mechanism of TRIP-Aided Polygonal Ferrite Matrix Seamless Steel Tube

参考文献