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| 扩散偶实验研究Pd-M(M=Pt, Co, Ni)二元系的物相 |
| Diffusion couple experimental study on the Pd-M (M = Pt, Co, Ni) binary system |
| 投稿时间：2021-01-16 |
| DOI： |
| 中文关键词: 金属材料 Pd-M(M=Pt, Co, Ni)体系 扩散偶 相平衡 相图 |
| 英文关键词: metal materials Pd-M (M = Pt, Co, Ni) system diffusion couple phase equilibrium phase diagram |
| 基金项目:国家自然科学基金地区基金(51961016)；云南省重大科技专项(2019ZE001-1，202002AB080001-1)；国家自然科学基金-云南联合基金(U1602271，U1602275)；云南省科技人才与平台计划资助项目(202105AC160002) |
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| 中文摘要: |
| 以Pd-M(M=Pt, Co, Ni)体系为研究对象，概述了各二元体系相图的研究现状，采用扩散偶技术研究了700℃时Pd-M(M=Pt, Co, Ni)体系各元素的扩散行为及平衡物相。结果表明，700℃时Pd-Pt体系发生了调幅分解反应，生成了富Pd相和富Pt相；Pd-Co扩散偶形成了摩尔分数约Pd7.4Co92.6的合金；Pd-Ni体系只生成了Pd-Ni固溶体。 |
| 英文摘要: |
| Pd-M (M = Pt, Co, Ni) three binary systems are studied. Firstly, the research progress of phase diagrams of binary systems are summarized, and then the diffusion behavior and equilibrium phase of each element in the system of Pd-M (M = Pt, Co, Ni) at 700℃ are studied by means of diffusion couple. The results show that at 700℃, the Pd-Pt system has the spinodal decomposition reaction, resulting in the formation of Pd-rich and Pt-rich phases. The Pd-Co diffusion couple forms a Pd7.4Co92.6 alloy, and only solid solution is formed in Pd-Ni system. |
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