Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 778, Issue -, Pages 224-233Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.11.137
Keywords
Alloy 617; Oxidation; Grain size; Grain boundary character distribution
Categories
Funding
- Alexander von Humboldt Foundation, Germany
Ask authors/readers for more resources
The effect of grain boundary engineered microstructure on isothermal and cyclic high temperature oxidation of Ni based alloy 617 in steam comprising of 20% H2O vapour is studied. The grain boundary character and network in alloy 617 was modified through thermomechanical processing by subjecting material to cold rolling and annealing. The isothermal oxidation resistance improved significantly after the thermomechanical processing and is attributed to the increase in twin boundary fraction and disruption of random high angle grain boundary network. Weight loss due to spallation and volatilization of chromium oxide is observed in the thermo-mechanically processed specimen during cyclic oxidation. It is attributed to reduction in grain size and non-uniform grain size distribution following thermomechanical processing. (C) 2018 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available