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《Materials Science and Technology》 2006-01
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Influence of passes during ECAP on spheroidization of cemenite in pearlitic steel

WANG Li-zhong~1,WANG Jing-tao~2,HUANG Jun-xia~2,GUO Cheng~1,CHEN Jin-de~1,(1.School of Mechanical Engineering,Xi'an Jiaotong University,Xi'an 710049,China;2.Dept.of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)  
The spheroidization behavior of cementite in pearlitic steel during equal channel angular pressing(ECAP) hot deformation at 650℃ was studied,and the results show that the lamellae cementite evolved to be congeries of fine cementite particles after the first pass;spherical particles of cementite was formed after the 2nd pass;ultrafine spherical cementite particles distributed uniformly in the ultrafine grained ferrite matrix after the 5th pass of ECAP.
【Fund】: 国家自然科学基金资助项目(59974018)
【CateGory Index】: TG156.81
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1 TIAN Peng~1 HUI Weijun~2 NIE Chaoyin~1 ZHANG Buhaia~3 YU Tongren~3 (1 School of Materials Science and Engineering,Southwest University,Chongqing 400715;2 Institute for Structural Materials, Central Iron & Steel Research Institute,Beijing 100081;3 Technology Center,Maanshan Iron & Steel Co.Ltd,Maanshan 243000);Current Development Status and Trends of Softening Medium-carbon Cold-heading Steel[J];Materials Review;2008-12
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