Scale formation on the Ni-base superalloys IN 939 and IN 738 LC
Scale formation on the Ni-base superalloys IN 939 and IN 738 LC
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镍基高温合金 IN 939 和 IN 738 LC 上氧化皮的形成
DOI：
10.1007/bf00664797
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发表时间：
1989
影响因子：
2.2
通讯作者：
J. Weiss
中科院分区：
文献类型：
--
作者：
J. Litz;A. Rahmel;M. Schorr;J. Weiss
用光学、微探针分析和X射线衍射测量研究了高温合金IN 939和IN 738 LC在700、900和1100°C空气中形成的氧化皮。两种合金形成非常相似的尺度。其主要成分是外层的TiO2层，中间的Cr2O3层与溶解的Ti，和具有金红石结构的（Ti，Nb，Ta）O2的内层。在氧化皮下方形成内部腐蚀区，其包含直接位于外部氧化皮下方的Al2O3和进一步进入基材的TiN。
The scales formed on the superalloys IN 939 and IN 738 LC at 700, 900, and 1100°C in air have been investigated by optical, microprobe analysis and x-ray diffraction measurements. Both alloys form very similar scales. The main components are an outer TiO2 layer, an intermediate Cr2O3 layer with dissolved Ti, and an inner layer of (Ti, Nb, Ta)O2 with rutile structure. Beneath the scale an internal corrosion zone is formed that contained Al2O3 directly beneath the external scale and TiN further into the substrate.