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本文通过对 ３６ＸＳ，３６Ｘ．ＨｉＳｉ－ＨＰ，Ｃｒ２５Ｎｉ３８，ＨＰ和 ＨＫ 等 ６种奥氏体耐 热钢在渗碳过程中渗层深度的增加速度、渗碳层最高含碳量等性能的研究．利用电子 探针微区成分分析的方法，深入探讨了 Ｓｉ，Ｎｉ．Ｃｒ．Ｆｅ 等合金元素在渗碳过程中 的行为和对耐热钢渗碳性能的影响．得到Ｓｉ．Ｎｉ．Ｆｅ 等元素主要通过阻碍碳化物 形成而提高耐热钢的抗渗碳能力；渗碳过程中形成大量碳化物所需耍的 Ｃｒ 主要通 过渗层内基体提供．渗层内总的含 Ｃｒ 量并没增加，因渗层内基体含Ｃｒ量的显著下 降而使其耐氧化腐蚀能力下降。
This article through the 36XS, 36X. HiSi-HP, Cr25Ni38, HP and HK 6 kinds of austenitic heat-resistant steel in the carburizing process of the depth of penetration of carburizing layer carburizing the highest performance. Using electron probe micro-region composition analysis methods, in-depth discussion of Si, Ni. Cr. Fe and other alloying elements in the carburizing process and the heat resistance of the steel carburizing performance. Get Si. Ni. Fe and other elements mainly through the formation of obstructing the formation of carbides to improve the anti-carburizing capacity of heat-resistant steel; carburizing process required for the formation of a large number of carbides Cr mainly provided by the matrix within the layer. The total content of Cr in the infiltrated layer did not increase, but the resistance to oxidation corrosion decreased due to the significant decrease of Cr content in the infiltrated layer.