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Work strengthening in a Fe-Ni-Co-Cr-Mo alloy

Journal Article · · Metallurgical Transactions, A
DOI:https://doi.org/10.1007/BF02643137· OSTI ID:4336659
The effect of cold work on the mechanical properties and microstructure of an fcc Fe-Ni-Co-Cr--Mo alloy is discussed. In samples deformed up through 20%, strengthening is attributed to an increase in dislocation content. Greater deformation (48 and 75%) results in the formation of deformation twins which increase in density with cold working. The deformation twins contribute to the high yield strength (0.2% offset) of 154 kg/mm/sup 2/ which is attained in this alloy upon cold working (75% elongation). This hardening mechanism is in contrast with that reported to be operating in a similar fcc Co--Ni-Cr-Mo alloy in which strengthening is attributed to the formation of a deformation-induced fine hcp epsilon phase.
Research Organization:
International Nickel Co., Inc., Suffern, NY
Sponsoring Organization:
USDOE
NSA Number:
NSA-29-027334
OSTI ID:
4336659
Journal Information:
Metallurgical Transactions, A, Journal Name: Metallurgical Transactions, A Journal Issue: 4 Vol. 5; ISSN 0360-2133
Publisher:
ASM International
Country of Publication:
Country unknown/Code not available
Language:
English

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