| 变形量对Ag-20Cu形变宏观复合材料力学性能的影响 |
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| 引用本文： | 耿永红,郭迎春,毕珺,张吉明,王传军,陈松,管伟明,张昆华. 变形量对Ag-20Cu形变宏观复合材料力学性能的影响[J]. 贵金属, 2009, 30(4) |
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| 作者姓名： | 耿永红 郭迎春 毕珺 张吉明 王传军 陈松 管伟明 张昆华 |
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| 作者单位： | 昆明贵金属研究所,云南,昆明,650106;昆明贵金属研究所,云南,昆明,650106;昆明贵金属研究所,云南,昆明,650106;昆明贵金属研究所,云南,昆明,650106;昆明贵金属研究所,云南,昆明,650106;昆明贵金属研究所,云南,昆明,650106;昆明贵金属研究所,云南,昆明,650106;昆明贵金属研究所,云南,昆明,650106 |
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| 基金项目： | 云南省科研院所技术开发研究专项，云南省中青年学术带头人后备人才项目 |
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| 摘 要： | 采用包覆-挤压-拉拔法制备了Ag-20Cu(质量分数,下同)形变宏观复合材料丝材.测试了不同变形量下Ag-20Cu复合丝材的极限抗拉强度、各相的显微硬度,扫描电镜测量了各相的尺寸,研究了变形过程中Ag-20Cu复合丝材力学性能的变化规律.结果表明,由于形变引起复合材料内部各相发生不同程度的加工硬化和回复,复合材料的力学性能随变形量的增加表现出不同的变化趋势,低应变阶段,由于各相的加工硬化和位错在复合界面处塞积,其力学性能随变形量的增大而增大;高应变阶段,主要由于基体Ag相的回复效应,其力学性能随变形量的增加而减小.
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| 关 键 词： | 金属材料 形变金属基复合材料 宏观复合材料 大塑性变形 力学性能 |
Effects of Deformation on the Mechanical Properties of Deformation Processed Ag-20Cu Macro-composite Wires |
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| GENG Yonghong,GUO Yingchun,BI Jun,ZHANG Jiming,WANG Chuanjun,CHEN Song,GUAN Weiming,ZHANG Kunhua. Effects of Deformation on the Mechanical Properties of Deformation Processed Ag-20Cu Macro-composite Wires[J]. Precious Metals, 2009, 30(4) |
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| Authors: | GENG Yonghong GUO Yingchun BI Jun ZHANG Jiming WANG Chuanjun CHEN Song GUAN Weiming ZHANG Kunhua |
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| Affiliation: | GENG Yonghong,GUO Yingchun,BI Jun,ZHANG Jiming,WANG Chuanjun,CHEN Song,GUAN Weiming,ZHANG Kunhua*(Kunming Institute of Precious Metals,Kunming,Yunnan 650106,China) |
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| Abstract: | The deformation processed Ag-20Cu(wt%) macro-composites were fabricated by metal cladding,post-extruding and then cold-drawing.The mechanical properties of the composite wires were tested and the dimensions of Ag and Cu layers were measured quantitatively depending on the scanning electron microscopic images.The effects of deformation on the mechanical properties of Ag-20Cu wires were investigated.The results indicated that the mechanical properties increase at low strain stage because of the work-hardening... |
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| Keywords: | metal materials deformation processed metal-metal composites macro-composites severe plastic deformation mechanical properties |
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