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| Zr、Y元素对Pt-10Rh合金性能的影响研究 |
| Effects of Zr and Y elements on the performance of Pt-10Rh alloy |
| 投稿时间：2022-04-26 |
| DOI： |
| 中文关键词: 铂铑合金 锆 钇 力学性能 高温氧化 |
| 英文关键词: Pt-Rh alloy zirconium yttrium mechanical performance high temperature oxidation |
| 基金项目:云南省基础研究计划重点项目(2019FA048)；国家自然科学基金(52161005)；云南省重大科技专项(202002AB080001-1) |
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| 中文摘要: |
| 在Pt-10Rh合金中添加少量的Zr、Y元素，利用真空充氩电弧熔炼方法制备了Pt-10Rh-0.5Zr合金及Pt-10Rh-0.5Zr-0.2Y合金。研究了合金的相结构、室温与高温力学性能以及高温抗氧化性能，观察分析了合金高温氧化及高温断口的形貌组织结构。结果表明，合金形成了由铂铑固溶体基体相与少量的金属间化合物相构成的组织结构；添加少量的Zr、Y元素大幅提高了Pt-10Rh合金的力学性能，同时Y元素还显著改善了Pt-10Rh-0.5Zr合金的高温塑性和抗氧化性能。 |
| 英文摘要: |
| A small amount ofZr and Y were added to Pt-10Rh alloy, and then vacuum argon filled arc melting was used to prepare Pt-10Rh-0.5Zr and Pt-10Rh-0.5Zr-0.2Y alloy. For the alloys, the phase structure, high temperature oxidation resistance and mechanical properties both at room temperature and high temperature were tested. The microstructure after high temperature oxidation and the fracture morphology were also observed. The results show that the structure of the alloys is composed of a platinum rhodium solid solution matrix and a small amount of intermetallic compounds. Zr, Y additions significantly improve the mechanical properties of Pt-10Rh alloy, meanwhile Y can greatly enhance the high temperature plasticity and oxidation resistance of Pt-10Rh-0.5Zr alloy. |
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