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Effect of Controlled Cooling After Hot Rolling on Mechanical Properties of Hot Rolled TRIP Steel 被引量:8
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作者 WU Di LI Zhuang lu hui-sheng 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2008年第2期65-70,共6页
A three-step cooling pattern on the runout table(ROT)was conducted for the hot rolled TRIP steel.Microstructural evolution during thermomechanical controlled processing(TMCP)was investigated.Processing condition o... A three-step cooling pattern on the runout table(ROT)was conducted for the hot rolled TRIP steel.Microstructural evolution during thermomechanical controlled processing(TMCP)was investigated.Processing condition of controlled cooling on a ROT in the laboratory rolling mill was discussed.The results indicated that the microstructure containing polygonal ferrite,granular bainite and a significant amount of the stable retained austenite can be obtained through three-step cooling on the ROT after hot rolling.TMCP led to ferrite grain refinement.Controlled cooling after hot rolling resulted in the stability of the remaining austenite and a satisfactory TRIP effect.Excellent mechanical properties were obtained through TMCP for the hot rolled TRIP steel. 展开更多
关键词 hot rolled TRIP steel three-step cooling TRIP effect mechanical property
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Effect of Thermomechanical Processing on Mechanical Properties of Hot Rolled Multiphase Steel 被引量:1
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作者 LI Zhuang WU Di lu hui-sheng 《Journal of Iron and Steel Research International》 SCIE EI CAS CSCD 2008年第1期55-60,共6页
The effect of thermomechanical processing(TMP)on the mechanical properties of hot rolled multiphase steel was investigated.TMP was conducted using a laboratory hot rolling mill,in which three different kinds of fini... The effect of thermomechanical processing(TMP)on the mechanical properties of hot rolled multiphase steel was investigated.TMP was conducted using a laboratory hot rolling mill,in which three different kinds of finish rolling deformation degrees and temperatures were applied.The results indicate that polygonal ferrite,granular bainite,and a considerable amount of stabilized retained austenite can be obtained by TMP.The stability of the retained austenite increases with decreasing finish rolling temperature and increasing finish rolling deformation degrees.Ultimate tensile strength(σb),total elongation(δ),and the product of ultimate tensile strength by total elongation(σb·δ)for 50% reduction at finish rolling temperature of 700 ℃ reach maximum values [791 MPa,36% and 28 476(MPa·%),respectively]. 展开更多
关键词 hot rolled multiphase steel finish rolling deformation degree finish rolling temperature retained austenite mechanical property
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