Effect of oxygen potential on high temperature crack growth in alloy 617

[摘要] (cont.) The results confirm the formation of chromium oxide in the wake of cracking and provide little or no indication of intergranular oxygen diffusion ahead of the crack. However, the resolution of the Auger spectroscopy results was insufficient for a definitive statement in this regard. The observations in this study most closely relate to dynamic embrittlement process involving short range intergranular oxygen absorption under the presence of stress.

[发布机构] Massachusetts Institute of Technology