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First-Principles Investigation of Thermodynamic Decomposition of Interfacial Oxides in Hot Compression Bonding
Zhang, Honglin; Chen, Xing-Qiu; Xu, Bin; Sun, Mingyue; Li, Dianzhong
2019-11-13
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN1073-5623
AbstractThe removal of interfacial oxides is essential in solid-state bonding to obtain high-performance joints. A recent work reported that the dissolution of MnCr2O4 at the hot compression bonding (HCB) interface of 316LN stainless steel improved the mechanical properties of joints. The evolution behaviors of interfacial oxides behind it should be further understood. In this study, the thermodynamic stability of MnCr2O4 and decomposition mechanisms of interfacial oxides in HCB was studied by combining the first-principles calculations with thermodynamics approach. The results obtained within GGA + U method were compared with experiments and in a good agreement with previous calculated results. The predicted stability region of MnCr2O4 was built by drawing the Mn-Cr-O phase diagram. The transition of its possibly coexisting binary oxides was understood in detail with respect to the environmental conditions. The interfacial oxides evolution in HCB process was proposed based on the variation of oxygen chemical potential. It predicted that MnCr2O4 forms during the heating period of HCB with the presence of binary oxides of Mn and Cr. All possible interfacial oxides decompose into metal phases and oxygen atoms when Delta mu O is below - 386.97 kJ/mol.
Indexed BySCI
Language英语
WOS IDWOS:000495708200009
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80633
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhang, Honglin,Chen, Xing-Qiu,Xu, Bin,et al. First-Principles Investigation of Thermodynamic Decomposition of Interfacial Oxides in Hot Compression Bonding[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2019.
APA Zhang, Honglin,Chen, Xing-Qiu,Xu, Bin,Sun, Mingyue,&Li, Dianzhong.(2019).First-Principles Investigation of Thermodynamic Decomposition of Interfacial Oxides in Hot Compression Bonding.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE.
MLA Zhang, Honglin,et al."First-Principles Investigation of Thermodynamic Decomposition of Interfacial Oxides in Hot Compression Bonding".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2019).
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