Progress in application of rare metals in superalloys

作     者：Kuang-Di Xu Zhong-Ming Ren Chuan-Jun Li 

作者机构：Laboratory of Modern Metallurgy and Material ProcessingShanghai University 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2014年第33卷第2期

页      面：111-126页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：The supports from State Basic Research Development Program of China(No.2010BC100404) Shanghai Science and Technology Committee 

主　　题：Superalloys Rare metals Strengthening Carbide Intermetallics Elevated temperature mechnical property Oxidation resistance Rupture life Creep resistance 

摘      要：Rare metals play an important role in development of superalloys. Over the last two decades, the application of the rare metals in superalloys has achieved progress significantly. They present multi-beneficial effects for strengthening the matrix and the cophase, increasing the lattice misfit, cleaning the grain boundary, improving the carbides and eutectics, refining the grain, stabilizing the oxidation film, etc., so that the elevated temperature rupture life and elevated temperature oxidation resistance are improved significantly, leading to a broad application in the superalloys. In order to meet the higher demand for better superalloys in the future, more intensive research is necessary on the effects of the rare metals on the superalloy, and especially on the combination effect of various rare metals and mutual influence among them. Utilization of the computational materials science and combinatorial high throughput experiment will be of importance in application of rare metals in superalloys.