A torsion test has been devised that provides for plane strain constraint in small specimens during fracture toughness testing. This method has been extended for stress-corrosion cracking and a simple torsion load frame has been built to provide for step loading of the specimens. This paper describes using the torsion technique to measure KISCC for aluminum alloy 7075 having two thermo-mechanical treatments.

Volume Subject Area:
Materials and Fabrication
Keywords:
stress-corrosion cracking, spiral-notch torsion test
Topics:
Cracking (Materials), Fracture (Process), Stress corrosion cracking, Torsion
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Copyright © 2005
 by ASME
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