Chemical Composition and Precipitates at the Particle Surface and Primary-particle Boundaries of HIPed FGH95 Alloy

Wu Chengjian; Li Jinghui; Feng Songyun; Zhang Shouhua

doi:10.13374/j.issn1001-053x.1987.s1.011

Volume 9 Issue S1

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Article Navigation > Chinese Journal of Engineering > 1987 > 9(S1): 81-86

Wu Chengjian, Li Jinghui, Feng Songyun, Zhang Shouhua. Chemical Composition and Precipitates at the Particle Surface and Primary-particle Boundaries of HIPed FGH95 Alloy[J]. Chinese Journal of Engineering, 1987, 9(S1): 81-86. doi: 10.13374/j.issn1001-053x.1987.s1.011

Citation:

Wu Chengjian, Li Jinghui, Feng Songyun, Zhang Shouhua. Chemical Composition and Precipitates at the Particle Surface and Primary-particle Boundaries of HIPed FGH95 Alloy[J]. Chinese Journal of Engineering, 1987, 9(S1): 81-86. doi: 10.13374/j.issn1001-053x.1987.s1.011

Citation:

Wu Chengjian, Li Jinghui, Feng Songyun, Zhang Shouhua. Chemical Composition and Precipitates at the Particle Surface and Primary-particle Boundaries of HIPed FGH95 Alloy[J]. Chinese Journal of Engineering, 1987, 9(S1): 81-86. doi: 10.13374/j.issn1001-053x.1987.s1.011

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Chemical Composition and Precipitates at the Particle Surface and Primary-particle Boundaries of HIPed FGH95 Alloy

doi: 10.13374/j.issn1001-053x.1987.s1.011

Available Online: 2021-10-28
Publish Date: 2021-10-28

Abstract

Abstract

By means of TEM, TEDAX and AES the chemical composition and precipitates on particle surface and at the primary particle/particle boundaries of HIPed billet have been investigated. Experimental results show that the particle surface of powders produced by Ar atomisation is enriched with S、C、Ti、O and TiC particles also precipitate on the surface. After hot isostatic pressing, the carbides distributed around the primary-particle boundaries are niobium ri-ched (Nb, Ti, Mo) C phase, S and O concentration drastically decreases at the primary-particle boundaries, and a small amount of P segregate to the primary-particle boundaries during hot isostatic pressing.