铁基合金化学镀层的显微硬度

Microhardness of Electroless Plating Fe-Base Alloy Deposits

摘要:

通过显微硬度测量和Ｘ射线衍射结构分析，研究了化学镀Ｆｅ－Ｍｏ－Ｂ非晶态合金、Ｆｅ－Ｗ－Ｂ晶态合金镀层的显微硬度随成分、热处理及结构的变化关系。结果表明：两合金系的显微硬度均随类金属Ｂ含量增加而提高，电子浓度的变化规律则相反。且热处理过程中，随退火温度增加，Ｆｅ－Ｗ－Ｂ合金镀层的显微硬度出现峰值，这与晶化析出相的类型及数量有关。

Abstract:

The variations of microhardness with the composition, heat treatment and structure have been studied by measuring microhardness and analyzing X-ray diffraction spectrum for electroless plating Fe-W-B crystallization and Fe-Mo-B amorphous alloys The results show that the microhardness of two alloy systems increases with increasing metalloid B contents, which is opposite to the electronic concentration The microhardness of Fe-W-B deposit has the peak value with increasing annealing temperature,which concerns with the phase type and number of crystallizable separation out