The structure and property of 40Cr steel ion?nitrided layer in the different nitrided atmosphere were investigated by means of Ion Microprobe, XRD, Microscope Analysis and so on.
采用金相组织分析、显微硬度测试以及普通辉光离子氮化炉等方法和设备 ，研究经不同方式预处理的氨气对离子氮化速度和氮化层组织的影响。
Phase structure and content of the nitrided layer with or without powerful shot-peening is different.
喷丸试样的渗氮层与未喷丸试样相比，表面物相及含量都有不同。
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