EFFECT OF CARBON AND BORON ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF A SINGLE CRYSTAL SUPERALLOY RR 2072

作     者：D.H.Kim D.H. Ye J.H. Lee Y.S. Yoo C.Y. Jo 

作者机构：High Temperature Materials Laboratory Korea Institute of Machinery & Materials 66 Sangnam Changwon Kyungnam 640-010 S. KoreaDept. of Metallurgy Changwon National Univerisity 9 Sarim Chagwon Kyungnam 640-773 S. KoreaDept. of Metallurgy Changwon National Univerisity 9 Sarim Chagwon Kyungnam 640-773 S. KoreaHigh Temperature Materials Laboratory Korea Institute of Machinery & Materials 66 Sangnam Changwon Kyungnam 640-010 S. KoreaHigh Temperature Materials Laboratory Korea Institute of Machinery & Materials 66 Sangnam Changwon Kyungnam 640-010 S. Korea 

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

年 卷 期：2005年第18卷第1期

页      面：33-38页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0703[理学-化学] 0811[工学-控制科学与工程] 

主　　题：single crystal superalloy defect tolerance directional solidification creep rupture 

摘      要：Carbon and boron have been considered to strengthen grain boundaries that might form during single crystal casting. In this study the effect of boron on solidification behavior and creep properties of the carbon doped single crystal RR 2072 has been investigated. In order to understand solidification behavior with boron addition, the solid/liquid interface morphology and solidification microstructure were examined with solidification rate. The relationship between mi-crostructural evolution and creep properties of the carbon and boron modified single crystal has been also investigated.