| 张光伟,官珊丹,张建波,刘耀.铜镁、铜锡合金接触线的制备及组织性能研究[J].有色金属材料与工程,2015,36(2):71-74. |
| 铜镁、铜锡合金接触线的制备及组织性能研究 |
| Preparation and Organization Performance of Copper-magnesium and Copper-tin Alloy Contact Wire |
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| DOI：10.13258/j.cnki.snm.2015.02.006 |
| 中文关键词: 连续挤压 铜镁合金 铜锡合金 接触线 |
| 英文关键词:continuous extrusion copper-magnesium alloy copper-tin alloy contact wire |
| 基金项目:国家自然科学基金资助项目(51461017);江西省教育厅资助项目(GJJ14447);江西省教育厅青年基金资助项目(GJJ14443) |
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| 中文摘要: |
| 通过上引连续铸造—连续挤压法制备了铜镁、铜锡两种合金接触线.结果表明,镁、锡元素的添加均能显著提高接触线的强度,并保证较高的导电率,镁元素的强化效果更为显著.此外,通过连续挤压扩展变形显著改善了铜镁、铜锡合金接触线的铸态组织,获得超细晶粒.主要原因在于上引铸杆在连续挤压过程中处于高压高温的状态,铸态晶粒完全破碎,动态再结晶发生完全. |
| 英文摘要: |
| Copper-magnesium and copper-tin alloy contact wires were prepared by the cast-continuous extrusion.The results show that adding magnesium and tin elements could significantly increase the strength of the contact wire and ensure high conductivity performance.Magnesium had a more conspicuous strengthening effect.In addition,the cast microstructure of copper-magnesium and copper-tin alloy contact wires significantly improved by expansion deformation.The ultra-fine grain was obtained in that the cast grain was completely broken and then recrystallized dynamically when the up-cast rod remained in a state of high pressure and high temperature during the process of continuous extrusion. |
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