DYNAMICS OF PRECIPITATION AND TRANSFORMATION OF CARBIDES IN A Ni-BASE SUPERALLOY

作     者：HUANG Qianyao SHI Yanyu Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,China Department No.5,Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,China HUANG Qianyao SHI Yanyu Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,China Department No.5,Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,China

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1989年第2卷第3期

页      面：181-185页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Ni-base superalloy carbides hot exposure electrolytic extraction X-ray diffraction analysis 

摘      要：The quantitative analytical method combining the electrolytic extraction with X-ray diffraction analysis to determine the carbides and TCP in a Ni-base superalloy was *** variation of decomposition of MC and precipitation of M_(23)C_6 and M_6C with hot exposure time at 850—1000℃ is shown to conform to hyperbolic *** elemental con- stitution of M_(23)C_6 changes continutously during the hot exposure *** the primary stage the constitution of the precipitates is(Cr_(0.67)Mo_(0.13)Ni_(0.13)Co_(0.07))_(23)C_*** with in- creasing Cr and decreasing Mo,Ni and Co it finally becomes(Cr_(0.88)Mo_(0.07)Ni_(0.03)Co_(0.02))_(23)C_6. The higher the hot exposure temperature,the faster the final constitution of M_(23)C_6 may be achieved.