Relationship Between Grain Boundary Segregation of Antimony and Temper Embrittlement in Titanium-Doped Nickel-Chromium Steel

The antimony segregation at grain boundary was observed and the temper embrittlement in titanium-doped nickel-chromium steel was analyzed. It is concluded that the antimony segregation at grain boundary is nonequilibium and the kinetics of temper embrittlement agrees well with those of nonequilibriu...

Full description

Saved in:
Bibliographic Details
Published in:Journal of iron and steel research, international international, 2011, Vol.18 (1), p.68-72
Main Authors: ZHENG, Lei, ZHANG, Mai-cang, DONG, Jian-xin, MENG, Ye
Format: Article
Language:English
Subjects:
Antimony
Applied and Technical Physics
critical time
diffusion activation energy
Embrittlement
Engineering
Grain boundaries
grain boundary segregation
Iron and steel industry
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
Nickel
Physical Chemistry
Processes
Segregations
Steel making
Steels
temper embrittlement
回火脆化
晶界偏析
晶粒间界
钛掺杂
镍铬钢
非平衡态
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The antimony segregation at grain boundary was observed and the temper embrittlement in titanium-doped nickel-chromium steel was analyzed. It is concluded that the antimony segregation at grain boundary is nonequilibium and the kinetics of temper embrittlement agrees well with those of nonequilibrium antimony segregation at grain boundary. Besides, the mechanism of nonequilibrium antimony segregation at grain boundary proved to be the most satisfactory one among the existing mechanisms to interpret the antimony induced embrittlement kinetics in the nick- el-chromiunl steel. Based on these, the activation energy and frequency factor of diffusion of antimony vacancy complexes were obtained according to the concept of critical time in nonequilibrium grain boundary segregation theory.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(11)60013-7