期刊论文

Research on Zr4 Alloy After Ion Nitriding and Soft Nitriding Surface Treatment

中文

热加工工艺

1001-3814

2016

45

14

130-132

10.14158/j.cnki.1001-3814.2016.14.037

湖南省重点学科建设项目资助（湘教发[2011]76号）.

本校为第一机构

对Zr4合金分别进行离子氮化和软氮化处理,利用全自动金相显微镜对Zr4合金氮化层进行金相组织分析,利用扫描电镜对氮化层形貌进行观察,并测出氮化层厚度。利用X射线衍射仪对氮化层进行物相分析。利用显微硬度测试器测试氮化层的维氏硬度。结果表明:Zr4合金软氮化处理后氮化层比离子氮化层排列地更加紧密,软氮化层厚度为2.5 μm,离子氮化层厚度为3.3 μm。软氮化层的Zr和O化合物比离子氮化物衍射峰明显。软氮化的氮化层表面显微硬度达到641.7HV0.025,其硬度高于离子氮化处理后氮化层的表面显微硬度。

Ion nitriding and soft nitriding processing for Zr4 alloy were carried out, respectively. Automatic metallographic microscope was used to analyze the microstructure of Zr4 alloy nitride layer. The morphology of nitride layer was observed by scanning electronic microscope. The thickness of nitriding layer was detected. The X ray diffraction was used to analyze the phase of nitriding layer. The microhardness tester was used to test the vickers hardness of nitride layer. The results show that：the arranging of nitriding layer of Zr4 alloy obtained...