材料期刊网

1. 首页
2. 检索结果页

原词结果 | 译词结果

MECHANISM OF SECONDARY M_(23)C_6 PRECIPITATION AROUND MC IN A COBALT-BASE SUPERALLOY

W.H. Jiang , X.D. Yao , H.R. Guan and Z.Q. Hu(1) Department of Superalloys , Institute of Metal Research , The Chinese Academy of Sciences , Shenyang 110015 , China2) Department of Metal Materials Engineering , Shenyang Polytechnic University) Shenyang 110023 , China )Manuscript received in revised form 11 September 1998

金属学报(英文版)

Secondary M23C6 precipitation around primary MC carbide in a directionally solidified cobalt-base saperalloy was investigated duriny aging at 850℃. The results show that it was closely related to the decomposition of the MC. Two mechanisms were suggested,i.e. the in situ reaction, MC+γ→M23C6+C, and the direct reaction, M+C→M23C6,in which MC acted as a carbon source.

关键词: cobalt-base superalloy , null , null , null

MECHANISM OF TiC FORMATION IN LIQUID ALUMINIUM

W.H. Jiang , W.D. Pan and G.H. Song(Dept. of Metal Materials Engineering , Shenyang Polytechnic University , Shenyang 110023 , ChinaC. Badini)

金属学报(英文版)

The mechanism of in situ formation of TiC phase in liquid aluminium during the contact reaction was studied in the present work. The results show that TiC phase forms through two reactions, i.e., 3Al+Ti→Al3 Ti and Al3 Ti+C→TiC+3Al. Itis proposed that aluminium acts as a catalyst activating the reaction of TiC formation.

关键词: in situ reaction , null , null

出版年份

刊物分类

相关作者

相关热词