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| 银铂合金的制备及性能研究 |
| Preparation and Properties of the Ag-Pt alloys |
| 投稿时间：2019-01-08 |
| DOI： |
| 中文关键词: 金属材料 银铂合金 真空感应熔炼 微观结构 物相 硬度 |
| 英文关键词: metal materials silver-platinum alloys vacuum induction melting micro-structure phase hardness |
| 基金项目:国家重点研发计划重点专项(2017YFB0305700) |
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| 摘要点击次数: 2352 |
| 全文下载次数: 2025 |
| 中文摘要: |
| 采用真空感应熔炼法制备得到了4种不同铂含量的银铂合金材料。测定了合金的密度并分析其物相，研究了铂含量对铸态银铂合金致密性、组织形貌、晶粒取向和硬度的影响。结果表明，在快速升温和冷却的熔铸条件下，所制备的银铂合金铸锭致密、有光泽；铂含量对银铂合金的组织形貌和性能有着显著的影响，随着铂含量的增大，银铂合金的组织由枝晶变为等轴晶，晶粒更小，且硬度逐渐增大。 |
| 英文摘要: |
| Four silver-platinum alloys with various platinum contents were prepared by vacuum induction melting method. Their density were determined, and their phases were analyzed . The impact of platinum content on compactness, micro-structure, grain orientation and hardness of as-cast silver-platinum alloys were investigated. The results indicated that the prepared silver-platinum alloy ingots were dense and shiny under the conditions of rapid heating and cooling. Platinum content had a significant effect on the micro-structure and properties of the silver-platinum alloys. With the increase of platinum content, the micro-structure of the silver-platinum alloy changed from dendritic crystals to isometric crystals with smaller grains, and the hardness was gradually increased. |
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