摘要
对３０ＣｒＮｉ３ＭｏＶ低合金钢切削速度为４．９７５ｍ／ｓ的正交切削试验所得切屑上大应变区进行Ｘ射线衍射分析．结果表明，在高速切削变形中少量索氏体转变成奥氏体；衍射线明显宽化．通过测量衍射线的宽化度（ｍ），利用谢乐公式Ｄ＝Ｋλ／ｍｃｏｓθ，可得位错胞直径，位错密度和微观应力，从而确定变形区的应变．
XRD analysis was made within the secondary deformed sone in the chip cut orthogonally at a speed of 4. 975 m/s. It was found that there was a little amount of Austenites transformed from Sorbites in such high-speed cutting tests,and a-phase XRD peaks broaden obviously. According to Soberrer's formula,D=Kλ/mcosθ. the diameter and density of dislocation cells are evaluated through the measured degree of broadening,as well as the strain and microstress in the secondary deformed zone.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
1995年第1期37-40,共4页
Journal of Northeastern University(Natural Science)
基金
国家"八五"科技攻关项目
关键词
切削
应变
合金钢
铬镍钢
X射线衍射分析
oCrNi3MoV steel,orthogonal cutting,great strain,high strain rate,phase transformation.
