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本文叙述了在LD—50—ZT型离子氮化炉中,对工业纯钛TA_z试样进行离子氮化试验的方法.分别选用不同气源(N_2/Ar、NH_3—N_2、NH_3—Arl、纯NH_3)、温度(750～1000℃)、时间对TA:进行几十炉次试验,相应地进行表层X射线衍射分析,金相组织分析,渗层厚度、表面硬度和硬度梯度检测,并据以初步找到了工业纯钛离子氮化的合理工艺参数;还叙述了TA_2离子氮化后的脆性和耐腐蚀性试验情况、全部研试中出现过的问题,并作了分析;也简介了钛阀零件以纯NH_3为气源的离子氮化及其结果.
This paper describes the method of ion nitriding test of industrial pure titanium TA_z in LD-50-ZT ion nitriding furnace, using different gas sources (N 2 / Ar, NH 3 -N 2, NH 3 -Arl, pure NH_3), temperature (750 ~ 1000 ℃), time TA: Dozens of heat test, the corresponding surface X-ray diffraction analysis, microstructure analysis, seepage layer thickness, surface hardness and hardness gradient detection, The reasonable technological parameters of industrial pure titanium ion nitriding were initially found. The brittleness and corrosion resistance test of TA_2 ion nitriding was also described, the problems occurred in all the tests were analyzed and analyzed. The titanium valve Ion Nitriding of Part with Pure NH_3 as Gas Source and Its Result.