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| Si和La元素对Mo丝显微组织与力学性能的影响 | |
| 引用本文： | 冯鹏发,刘仁智,赵虎,杨秦莉,付静波,孙军.Si和La元素对Mo丝显微组织与力学性能的影响[J].粉末冶金技术,2011,29(5):328-333. |
| 作者姓名： | 冯鹏发 刘仁智 赵虎 杨秦莉 付静波 孙军 |
| 作者单位： | 1. 金堆城钼业股份有限公司,西安710077;西安交通大学金属材料强度国家重点实验室,西安710049 2. 金堆城钼业股份有限公司,西安,710077 3. 西安交通大学金属材料强度国家重点实验室,西安,710049 |
| 基金项目： | 国家高技术发展计划项目(2008AA031002) |
| 摘 要： | 系统研究了La、Si单元掺杂和复合掺杂对钼丝的显微组织和力学性能的影响及其作用机制,优化出具有优异力学性能的Mo-Si-La合金丝的成分为Mo-0.15Si-(0.5～0.8)La.MoSi2与Mo原位反应生成Mo5Si3和Mo3 Si硬质相,起到良好的晶粒细化作用和弥散强化作用.La2O3颗粒通过延迟微裂纹的形成和扩... |
| 关 键 词： | 强韧化 La2 O3 MoSi2 钼丝 |
Effect of Si and La additions on the microstructure and mechanical properties of molybdenum wire |
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| Feng Pengfa,Liu Renzhi,Zhao Hu,Yang Qinli,Fu Jingbo,Sun Jun.Effect of Si and La additions on the microstructure and mechanical properties of molybdenum wire[J].Powder Metallurgy Technology,2011,29(5):328-333. | |
| Authors: | Feng Pengfa Liu Renzhi Zhao Hu Yang Qinli Fu Jingbo Sun Jun |
| Affiliation: | Feng Pengfa1),2),Liu Renzhi1),Zhao Hu1),Yang Qinli1),Fu Jingbo1),Sun Jun2) 1)(Jinduicheng Molybdenum Industry Limited Company,Xi'an 710077,China) 2)(State Key Laboratory for Mechanical Behavior of Materials,Xi'an Jiaotong University,Xi'an 710049,China) |
| Abstract: | The effect and mechanism of the addition of La,Si on the microstructure and mechanical properties of molybdenum wire were explored through the systematic experiments,and the composition of Mo-Si-La alloy wire with excellent mechanical properties was optimized,i.e.,Mo-0.15Si-(0.5~0.8)La.Mo3Si and Mo5Si3 particles,which are produced through the in-situ reaction of MoSi2 and Mo,play excellent effects of grain refinement and dispersion strengthening.La2O3 particles make the formation and spread of micro-cracks ... |
| Keywords: | strengthening-and-toughening La2O3 MoSi2 molybdenum wire |
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