Title of article
A new approach to strengthen grain boundaries for creep improvement of a Ni–Cr–Co–Mo superalloy at 950 °C
Author/Authors
Lee، نويسنده , , J.W. and Kim، نويسنده , , D.J. and Hong، نويسنده , , H.U.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2015
Pages
5
From page
164
To page
168
Abstract
Damage-tolerant microstructure containing serrated grain boundaries (GBs) has been developed in a solid-solution-strengthened Ni–Cr–Co–Mo superalloy by proprietary thermomechanical treatment. The creep life was found to be 2.8 times longer by mitigation of GB cavitational damage. The factors affecting creep properties at 950 °C are discussed in terms of GB strengthening.
Keywords
Grain boundaries , Electron microscopy , nickel based superalloys , thermomechanical processing , Dislocations , Creep
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2015
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2177819
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