CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
The effect of silicon on precipitation and decomposition behaviors of M6C carbide in a Ni-Mo-Cr superalloy
Xu, ZF; Jiang, L; Dong, JS; Li, ZJ; Zhou, XT
2015
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
Volume620Pages:197—203
Subtype期刊文献
AbstractThe effect of silicon addition on the precipitation and decomposition behaviors of M6C carbide in a Ni-Mo-Cr based superalloy and the tensile properties of this alloy have been investigated. Silicon increases the amount of undissolved M6C carbide particles obviously in Ni-Mo-Cr superalloy. Composition analyses reveal that primary M6C carbides in the standard heat are highly enriched in silicon. The addition of silicon widens the temperature range of M6C carbide existence to 1335 degrees C, while the M6C carbide in non-silicon heat was completely decomposed when heated to 1260 degrees C. According to the calculation results using Thermal-calc software, the Gibbs free energy of M6C carbide decreases with the silicon content, and the silicon-riched M6C carbide is more stable than that in non-silicon heat samples. In tensile tests, it is found that silicon-rich M6C carbide particles act as cracking origin sites, and further give rise to the degradation of the high temperature tensile properties of standard heat samples as compared to non-silicon heat ones. (C) 2014 Elsevier B.V. All rights reserved.
KeywordHigh-speed Steels Phase
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24596
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Xu, ZF,Jiang, L,Dong, JS,et al. The effect of silicon on precipitation and decomposition behaviors of M6C carbide in a Ni-Mo-Cr superalloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2015,620:197—203.
APA Xu, ZF,Jiang, L,Dong, JS,Li, ZJ,&Zhou, XT.(2015).The effect of silicon on precipitation and decomposition behaviors of M6C carbide in a Ni-Mo-Cr superalloy.JOURNAL OF ALLOYS AND COMPOUNDS,620,197—203.
MLA Xu, ZF,et al."The effect of silicon on precipitation and decomposition behaviors of M6C carbide in a Ni-Mo-Cr superalloy".JOURNAL OF ALLOYS AND COMPOUNDS 620(2015):197—203.
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