20Cr2Ni4A钢质轴承环碾压工艺的穆斯堡尔谱研究

The Mossbauer Spectra Study of RollingTechnology of 20Cr_2Ni_4A Steel Bearing Ring

用穆斯堡尔谱,测出了碾压后的材料处于拉应力状态;碾压后材料原子核外电子云密度随碾压比而增加,证明碾压能有效地改善材料的不均匀性。

Using Mossbauer Spectra, it is certain that rolled materialsare in the tensile state, and that electron cloud density of sample nuclearincreases together with rolling rate. These facts prove that rolling can improveunevenness of materials effectively.