Mechanism of secondary M23C6 precipitation around MC in a cobalt-base superalloy

W. H. Jiang; X. D. Yao; H. R. Guan; Z. Q. Hu

Mechanism of secondary M₂₃C₆ precipitation around MC in a cobalt-base superalloy

W. H. Jiang
, X. D. Yao
, H. R. Guan
, Z. Q. Hu

School of Energy and Power Engineering

CAS - Institute of Metal Research

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Secondary M₂₃C₆ precipitation around primary MC carbide in a directionally solidified cobalt-base superalloy was investigated during aging at 850 °C. The results show that it is closely related to the decomposition of the MC. Two mechanisms were suggested, i.e., the in situ reaction, MC+γ→M₂₃C₆+C, and the direct reaction, M+C→M₂₃C₆, in which MC acts as a carbon source.

Original language	English
Pages (from-to)	155-159
Number of pages	5
Journal	Acta Metallurgica Sinica (English Letters)
Volume	12
Issue number	2
State	Published - 1999

Cite this

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title = "Mechanism of secondary M23C6 precipitation around MC in a cobalt-base superalloy",

abstract = "Secondary M23C6 precipitation around primary MC carbide in a directionally solidified cobalt-base superalloy was investigated during aging at 850 °C. The results show that it is closely related to the decomposition of the MC. Two mechanisms were suggested, i.e., the in situ reaction, MC+γ→M23C6+C, and the direct reaction, M+C→M23C6, in which MC acts as a carbon source.",

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year = "1999",

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T1 - Mechanism of secondary M23C6 precipitation around MC in a cobalt-base superalloy

AU - Jiang, W. H.

AU - Yao, X. D.

AU - Guan, H. R.

AU - Hu, Z. Q.

PY - 1999

Y1 - 1999

N2 - Secondary M23C6 precipitation around primary MC carbide in a directionally solidified cobalt-base superalloy was investigated during aging at 850 °C. The results show that it is closely related to the decomposition of the MC. Two mechanisms were suggested, i.e., the in situ reaction, MC+γ→M23C6+C, and the direct reaction, M+C→M23C6, in which MC acts as a carbon source.

AB - Secondary M23C6 precipitation around primary MC carbide in a directionally solidified cobalt-base superalloy was investigated during aging at 850 °C. The results show that it is closely related to the decomposition of the MC. Two mechanisms were suggested, i.e., the in situ reaction, MC+γ→M23C6+C, and the direct reaction, M+C→M23C6, in which MC acts as a carbon source.

UR - https://www.scopus.com/pages/publications/0032684988

M3 - 文章

AN - SCOPUS:0032684988

SN - 1006-7191

VL - 12

SP - 155

EP - 159

JO - Acta Metallurgica Sinica (English Letters)

JF - Acta Metallurgica Sinica (English Letters)

IS - 2

ER -

Mechanism of secondary M₂₃C₆ precipitation around MC in a cobalt-base superalloy

Abstract

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