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| 金钯铁合金的K状态研究 |
| Study on the K-state of Au-Pd-Fe alloy |
| 投稿时间：2017-03-31 |
| DOI： |
| 中文关键词: 金属材料 K状态 金钯铁合金 热电阻 原子偏聚 |
| 英文关键词: metal materials K-state Au-Pd-Fe alloy thermal resistance segregation of atoms |
| 基金项目:云南省科技创新人才计划项目(2015HC034)、云南省应用基础研究重大项目(2016FC006)、国家自然科学基金(U1202273，51501075)、云南省院所技术开发专项(2014DC018)。 |
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| 中文摘要: |
| K状态是一种特殊的有序化转变，其形成会影响合金的力学性能和电学性能。Au-35Pd-8Fe合金在高温时为单相固溶体，热处理时会发生原子重排形成偏聚。采用硬度、XRD、热电阻等检测方法对Au-35Pd-8Fe合金固溶态和时效态进行分析。结果表明，该成分合金存在K状态，K状态转变温度范围为450~500℃，在该温度范围内合金电阻迅速升高并达到峰值。 |
| 英文摘要: |
| K-state is a special kind of order transformation. It will affect mechanical and electrical properties of a metal alloy. Au-35Pd-8Fe alloy is in a state of single-phase solid solution at a high temperature, and the segregation is produced due to the atomic rearrangement when the alloy undergoes heat treatment. A series of tests including hardness, XRD and thermal resistance were performed to analyze Au-35Pd-8Fe alloy in a solution state and in an aging state. The results show that the alloy after aging treatment exists in K-state. The temperature required for the K-state transition is from 450 to 500℃. In this temperature range, the heat resistance of the alloy rises rapidly and will reach the peak value. |
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