INFLUENCE OF HIGH TEMPERATURE REPRESSING ON P SEGREGATION IN 93W-4.5Ni-2.5Fe ALLOY

Acta Metall Sin

1991, Vol. 27

Issue (4): 59-63 DOI:

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INFLUENCE OF HIGH TEMPERATURE REPRESSING ON P SEGREGATION IN 93W-4.5Ni-2.5Fe ALLOY

LI Zhi;XI Jukui;YANG Yunlin Luoyang Institute of Technology

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LI Zhi;XI Jukui;YANG Yunlin Luoyang Institute of Technology. INFLUENCE OF HIGH TEMPERATURE REPRESSING ON P SEGREGATION IN 93W-4.5Ni-2.5Fe ALLOY. Acta Metall Sin, 1991, 27(4): 59-63.

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Abstract The influence of high temperature repressing on the P segregation in93W-4.5Ni-2.5Fe alloy has been examined by Auger spectroscopy, EPMA, TEM andSEM. The P was observed to segregate along the W-W interface, especially the W-matrix boundaries, in specimens aged at 1200--1500℃, F.C., but it will be no moreafter repressed. The dislocations in the matrix of as-repressed alloy seem to be influ-ential directly on the segregation of P onio interface. The mechanical propertiesmay decrease with the interfacial segregation of P in the annealed specimens.

Key words: W-Ni-Fe alloy high temperature repressing interface P segregation dislocation

Received: 18 April 1991

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1991/V27/I4/59

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