Evolution of Grain Boundary Precipitates in Al 7075 Upon Aging and Correlation with Stress Corrosion Cracking Behavior

2012 ◽  
Vol 44 (3) ◽  
pp. 1268-1278 ◽  
Author(s):  
Ramasis Goswami ◽  
Stanley Lynch ◽  
N. J. Henry Holroyd ◽  
Steven P. Knight ◽  
Ronald L. Holtz
Keyword(s):  
Grain Boundary ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Cracking Behavior ◽  
Al 7075

Effects of Cold-Work Degree on Stress Corrosion Cracking Behavior of Alloy 600 in Simulated Boiling Water Reactor (BWR) Water Environments

CORROSION ◽  
10.5006/3426 ◽  
2020 ◽  
Vol 76 (10) ◽  
pp. 930-940
Author(s):  
Wen-Feng Lu ◽  
Jiunn-Yuan Huang ◽  
Tai-Cheng Chen ◽  
Kun-Chao Tsai
Keyword(s):  
Grain Boundary ◽  
Stress Corrosion ◽  
Crack Growth ◽  
Stress Corrosion Cracking ◽  
Cold Work ◽  
Growth Behavior ◽  
Corrosion Cracking ◽  
Boiling Water ◽  
Alloy 600 ◽  
Cracking Behavior

The growth behavior of stress corrosion cracking (SCC) of Alloy 600 with different cold-work levels was investigated in simulated boiling water reactors water environments. In addition, a correlation of cold-work levels, grain boundary characteristic, and the SCC growth behavior of Alloy 600 were studied. The results show that grains with high residual strain caused by cold work provide transgranular crack growth paths. The SCC growth rates of the specimens also increase with an increase in the degree of cold work and decrease remarkably after switching to the hydrogen water chemistry environment. Grain boundary character proves to be a factor more important than the localized strain concentration at the grain boundary in terms of its role in the intergranular crack growth rate of the Alloy 600 with a cold-work degree from 20% to 30%.

STUDY OF MICROSTRUCTURE AND STRESS CORROSION CRACKING BEHAVIOR IN WELDING TRANSITION ZONE OF Ni--BASED ALLOYS

2011 ◽  
Vol 46 (10) ◽  
pp. 1258-1266 ◽  
Author(s):  
Juan HOU ◽  
Qunjia PENG ◽  
SHOJI Testuo ◽  
Jianqiu WANG ◽  
Wei KE ◽  
...  
Keyword(s):  
Stress Corrosion ◽  
Transition Zone ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Cracking Behavior
Sign in / Sign up

Export Citation Format

Share Document