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本文简要叙述了计算微观应变和晶块尺寸的Warren-Averbach法、Voigt函数法、均方宽法,积分宽法,以及Stokes法和迭代卷积法修正仪器宽化的方法。用上述方法计算了淬火—回火的一组轴承钢试样的微观应变和晶块尺寸。随着降低回火温度,微观应变升高而晶块尺寸减小。用这些方法获得的结果基本一致,其中Warren法与积分宽法的结果符合较好。400℃—200℃回火试样的微观应变值基本上没有变化,但较低温度下的回火试样的微观应变局部变得更不均匀。
In this paper, Warren-Averbach method, Voigt function method, mean square width method, integral width method, and Stokes method and iterative convolution method are introduced briefly to calculate the method of instrument widening. Using the above method, the microscopic strain and crystallite size of a group of quenched and tempered bearing steel samples were calculated. As the tempering temperature is lowered, the micro-strain increases and the size of the ingot decreases. The results obtained by these methods are basically the same, of which Warren method and integral wide method in good agreement. The microscopic strain values of the tempered samples at 400 ° C - 200 ° C remained essentially unchanged, but the microscopic strain of the tempered samples at a lower temperature became locally less uniform.