40Cr钢磨削淬硬层组织形成机理的研究

CORC > 集美大学

	40Cr钢磨削淬硬层组织形成机理的研究
	刘菊东 ; 侯达盘 ; 王大镇
刊名	http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=jscl2007s1013&dbcode=CJFQ&dbname=CJFQ2007
	2012-06-05 ; 2012-06-05
关键词	磨削，表面淬火显微组织温度场应力-应变场 grinding surface quenching microstructure temperature field stress-strain field TG142.15
其他题名	Study on forming mechanism of microstructure on the grind-hardened layer of 40Cr steel
中文摘要	以单程切入式平面磨削淬硬加工试验为基础,利用X射线衍射仪和透射电镜对40Cr钢磨削淬硬层组织的形成及其变化进行了研究,进而阐明了磨削淬硬层组织的形成机理。结果表明,40Cr钢磨削淬硬层由板条马氏体和少量微细孪晶组成;在磨削温度场和应力-应变场的耦合作用下,磨削淬硬层中的马氏体含量以及板条马氏体特征尺寸沿层深呈现不同的变化趋势,马氏体内部的位错密度及孪晶数则随层深的增加而逐渐降低。; On the basis of the one-pass plunge surface grinding-hardening test,the microstructure and its variations of the grind-hardened layer of 40Cr Steel were studied by using the X-ray diffractometer and TEM,which further explaining the forming mechanism of microstructure of the grind-hardened layer.The result shows that the microstructure of hardened layer consists of the lath martensite and a few fine micro-twins.Under the coupling actions of the grinding temperature field and stress-strain field,the martensite content and characteristic size of the lath martensite of the hardened layer have a tendency to different changes along the depth direction. The dislocation density and the amount of twin inside the martensite gradually decreases with the increasing of the depth in the hardened layer.; 【作者单位】集美大学机械工程学院；集美大学机械工程学院福建厦门361021；福建厦门361021；【作者英文名】LIU Ju-dong HOU Da-pan WANG Da-zheng (School of Mechanical Engineering,Jimei University,Xiamen 361021,China)
语种	中文
内容类型	期刊论文
源URL	[http://ir.calis.edu.cn/hdl/235041/14270]
专题	集美大学
推荐引用方式 GB/T 7714	刘菊东,侯达盘,王大镇. 40Cr钢磨削淬硬层组织形成机理的研究[J]. http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=jscl2007s1013&dbcode=CJFQ&dbname=CJFQ2007,2012, 2012.
APA	刘菊东,侯达盘,&王大镇.(2012).40Cr钢磨削淬硬层组织形成机理的研究.http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=jscl2007s1013&dbcode=CJFQ&dbname=CJFQ2007.
MLA	刘菊东,et al."40Cr钢磨削淬硬层组织形成机理的研究".http://epub.edu.cnki.net/grid2008/brief/detailj.aspx?filename=jscl2007s1013&dbcode=CJFQ&dbname=CJFQ2007 (2012).