摘要
【目的】非晶态合金是一种新型的金属材料,其长程无序的原子结构导致其具有优异的力学性能,因此,有必要研究利用非晶态合金来提高普通材料性能的具体方案。【方法】通过快速熔体浸润抽拉包覆的方式,把Zr基非晶态合金材料快速包覆于铜线表面。【结果】非晶态合金包覆层可以有效地提高铜线的抗压强度,同时由于包覆层优异的抗腐蚀性,所制备的非晶态合金包覆铜线材料也具有优异的抗腐蚀性能。同时还发现铜线的包覆层厚度随着抽拉速度的增加而减小。随着包覆层厚度的增加,样品的屈服强度也逐步提高,但是不能无限度增加包覆层厚度:由于冷却散热问题,当包覆层厚度超过120μm时,包覆层合金会形成明显的晶化相,晶化后的包覆层不具备非晶态合金的高强度,从而不能提高铜线的力学性能。【结论】非晶态合金包覆层超高的强度和抗腐蚀性可以有效地改善铜线的力学和抗腐蚀性能,从而增强铜线环境耐受力,使之具有更广泛的应用价值。
[Purposes]Amorphous alloy is a new kind of metallic material with excellent mechanical properties because of its longrange disordered atomic structure.So it is neccessary,study the application of the amorphous alloy to improve the properties of ordinary materials.[Methods]Through the rapid pulling infiltration of melt,the Zr-based amorphous alloy was coated on the copper wires.[Findings]The experimental results show that amorphous alloy coating effectively improves the compressive strength of copper wires,and on the other hand,the coated copper wires also obtained excellent corrosion resistance.At the same time,it is discovered that the coating thickness of metallic glass decreases exponentially with the pulling rate.The strength of coated ample was improved by the increased thickness of coating.But the coating thickness cannot be over 120μm for the cooling problem in the preparation process.Overheated coating with crystalline phase cannot obtain the good mechanical properties of metallic glass.[Conclusions]So the super high strength and excellent corrosion resistance of amorphous alloy coating can effectively enhance the mechanical and corrosive properties of copper wires,leading to the improvement of environmental tolerance and service life of the copper wires.
出处
《重庆师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2017年第1期85-89,共5页
Journal of Chongqing Normal University:Natural Science
基金
国家自然科学基金资助项目(No.51274151)
重庆市自然科学重点基金(No.cstc2015jcyjBX0039)
关键词
非晶态合金
包覆层
抗腐蚀性
强度
amorphous alloys
coating layer
corrosion resistance
strength
