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The annihilation of antiphase boundary tubes and their effect on strengthening in Ni3Al

Journal Article · · Acta Materialia
 [1];  [2]
  1. Thermo Fisher Scientific, Hillsboro, OR (United States); Dartmouth College, Hanover, NH (United States); OSTI
  2. Dartmouth College, Hanover, NH (United States)
The temperature at which antiphase boundary (APB) tubes anneal out of lightly-strained Ni-rich Ni3Al thin foils has been measured via in-situ heating in a transmission electron microscope to be ~530 °C. Given this new information, the wealth of literature on the mechanical properties of Ni3Al across the entire temperature regime of the yield stress anomaly, ~25–800 °C, is re-evaluated to consider the impact of APB tubes. Contrary to previous theoretical predications, APB tubes do not appear to affect the strength of Ni3Al.
Research Organization:
Dartmouth College, Hanover, NH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES): National Cancer Institute (NCI)
Grant/Contract Number:
SC0018962
OSTI ID:
1976793
Journal Information:
Acta Materialia, Journal Name: Acta Materialia Journal Issue: C Vol. 237; ISSN 1359-6454
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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