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Effect of recrystallization on environmental embrittlement of a Ni3Al-based alloy

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Abstract

The effects of recrystallization on room temperature tensile properties and susceptibility to test environments (air versus vacuum) of a Ni3Al-based alloy have been investigated. The results indicate that recrystallization treatment not only increases ductility but also reduces susceptibility to test environment of the alloy. The fracture mode has also been observed in the scanning electron microscope (SEM). It was found that air promoted transgranular cleavage fracture and reduced the amount of ductile fracture for unrecrystallized and partially recrystallized microstructures. In completely recrystallized specimens, the ductile fracture mode remained unchanged when test environment changed from vacuum to air.

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Authors and Affiliations

  1. Institute of Metal Research, Academia Sinica, Liaoning Key Laboratory for Materials and Hydrogen, China

    JIAN-QING SU, SHU-JUN GAO, BING-XI YU & JIANG-TING GUO

  2. National Key Laboratory for RSA, Institute of Metal Research, Academia Sinica, Shenyang, 110015, People’s Republic of China

    ZHUANG-QI HU

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  1. JIAN-QING SU
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  2. SHU-JUN GAO
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  3. BING-XI YU
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  4. JIANG-TING GUO
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  5. ZHUANG-QI HU
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SU, JQ., GAO, SJ., YU, BX. et al. Effect of recrystallization on environmental embrittlement of a Ni3Al-based alloy. Journal of Materials Science 32, 1201–1205 (1997). https://doi.org/10.1023/A:1018531901542

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