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对离心ＳＨＳ（Ｓｅｌｆ－ｐｒｏｐａｔａｔｉｎｇＨｉｇｈ－ｔｅｍｐｅｒａｔｕｒｅ Ｓｙｎｔｈｅｓｉｓ自蔓延高温合成）陶瓷衬管的铁过渡层组织结构及性能研究发现，铁过渡层与陶瓷层为“抛锚”结合，过渡层与基体层为冶金结合。对铁过渡层进行ＳＥＭ、ＴＥＭ及ＤＥＡＸ分析发现，Ｆｅ层中残存有未分离的陶瓷粒子，具有较高的位错密度及发达的亚晶组织，且发现了少量的索氏体和屈氏体组织，认为这是由于钢基体中的碳渗透到铁层中引起的。这些都是造成铁过渡层硬度较高甚至超过钢基体的原因。
The microstructure and properties of iron transitional layer in SHS (Self-propatatingHigh-temperature Synthesis) ceramic liner were studied. It was found that the transition layer and the ceramic layer were “anchored” and the transitional layer was metallurgical bond with the substrate layer. SEM, TEM and DEAX analysis of the iron transitional layer showed that there were some unseparated ceramic particles in the Fe layer with high dislocation density and developed subgrain structure. A small amount of sorbite and troostite were found It is believed that this is caused by the infiltration of carbon in the steel matrix into the iron layer. These are the reasons for the hardness of the iron transition layer is higher than even the steel substrate.