Recrystallization and fatigue failure of DS alloy blades

This paper analyzed cracks and fractures of DS alloy blades. The failure modes and causes were studied on the basis of fracture surfaces and metallographical examination, and prevention measures were given. The results showed that the cracks and fractures failed in the same mode—fatigue failure caus...

Full description

Saved in:
Bibliographic Details
Published in:Engineering failure analysis 2004-06, Vol.11 (3), p.429-437
Main Authors: Zhang, Weifang, Li, Yunju, Liu, Gaoyuan, Zhao, Aiguo, Tao, Chunhu, Tian, Jifeng, Yao, Ge
Format: Article
Language:English
Subjects:
Blade failures
Directionally solidified alloys
Fatigue failure
Heat treatment
Recrystallization
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:This paper analyzed cracks and fractures of DS alloy blades. The failure modes and causes were studied on the basis of fracture surfaces and metallographical examination, and prevention measures were given. The results showed that the cracks and fractures failed in the same mode—fatigue failure caused by surface recrystallization of the blades. The surface recrystallization formed during the solution heat treatment because the blades deformed plastically.
ISSN:1350-6307
1873-1961
DOI:10.1016/j.engfailanal.2003.05.014