【摘要】 选取 8组GCr1 5钢制普通淬回火轴承套圈在实验室条件下进行高温回火试验 ,研究了X射线半高宽随回火温度和时间的变化。结果表明 ,X射线半高宽与回火参数P[=T(c +logt) ]之间符合Hollomn Jaffe关系。用最小二乘法对X射线半高宽与P进行回归 ,获得回归方程Y =4 41 .0 (P× 1 0 - 3) - 2 .0 9,这一方程可用于轴承零件磨削表面层热损伤的定量或半定量评价更多还原

【Abstract】 Eight series of GCr15 steel bearing inner rings treated by commonly quench tempered were tempered in high temperature under lab conditions. It was investigated that X ray FWHM (Full Width at Half of Maximum intensity of X ray diffraction profile) changed with tempering temperature and tempering time. The result shows that the relation between the X ray FWHM and the tempering parameter P[T(c +log t )] is in agreement with Hollomn Jaffe relation. The X ray FWHM was regressed with P by least square method, and regression equation Y=441.0(P ×10 -3 ) -2.09 was obtained. This equation can be used for assessing the grinding heat injury of bearing parts quantitatively or semi quantitatively.更多还原