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Title
Study on the Precipitation Strengthening in Ni-Al-Cr Alloy System
Author(s)
오창섭길상철
Publication Year
2014-03-31
Abstract
Transmission electron microscopic investigation has been performed concerning the effect of precipitation on the mechanical properties in Ni3Al- and NiAl-based intermetallics containing various types of fine precipitates. In an L12-ordered Ni3Al alloy with 4 mol. % of chromium and 0.2-3.0 mol % of carbon, fine octahedral precipitates of M23C6 type carbide, which has the cube-cube orientation relationship with the matrix, appear during aging. Typical Orowan loops are formed in Ni3Al containing fine dispersions of M23C6 particles. On the other hand, B2-ordered NiAl hardens appreciably by the precipitation of coherent a-Cr particles. By aging at temperatures around 973 K
Keyword
L12-ordered Ni3Al; B2-ordered NiAl; Cube-cube orientation relationship; Precipitation
Journal Title
Asian journal of chemistry
Citation Volume
26
ISSN
0970-7077
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14347
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART69663615
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