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发明公开
CN109338149A 适用于导电弹性元器件的高强钛铜合金棒材及制备方法 有权

适用于导电弹性元器件的高强钛铜合金棒材及制备方法
摘要：
一种适用于导电弹性元器件的高强钛铜合金棒材及制备方法，属于钛铜合金技术领域。其化学成分wt％为C 0～0.01％，Ti 2.6～3.4％，Ce 0.001～0.2％，W+Ta+Hf+Fe≤0.3％，余量为Cu及不可避免的杂质。制备过程包括：真空冶炼、锻造、热轧、固溶、时效、成品修磨、质量检查。在合金中加入Ce、W、Ta、Hf、Fe等元素，通过与之匹配的制备工艺，使合金的冷热加工性能、力学性能、热导率、电导率等综合性能得到提高；产品性能为：抗拉强度为1100～1250MPa，屈服强度为1000～1150MPa，导热系数为92～125W/(m·℃)，电导率为19～27％IACS，晶粒尺寸为15～90μm，硬度为300～380HV，超声检测达到A级以上。合金高强度、高热导率及高电导率的匹配满足导电弹性元器件强度、散热性能的要求。
摘要（英）：

The invention discloses a high-strength titanium-copper alloy bar suitable for conductive elastic components and a preparation method, and belongs to the technical field of titanium-copper alloy. Thechemical compositions of the high-strength titanium-copper alloy bar comprise, by weight, 0-0.01% of C, 2.6-3.4% of Ti, 0.001-0.2% of Ce, W+Ta+Hf+Fe<=0.3%, the balance being Cu and inevitable impurities. The preparation process comprises vacuum smelting, forging, hot rolling, solid solution treatment, aging treatment, finished product grinding and quality inspection. Comprehensive properties, suchas cold and hot processing properties, mechanical properties, thermal conductivity and electrical conductivity of alloy are improved by adding Ce, W, Ta, Hf, Fe and other elements into alloy and applying a matched preparation process. Product properties are as follows: tensile strength 1100-1250 MPa, yield strength 1000-1150 MPa, thermal conductivity 92-125 W/(m.DEG C), electrical conductivity 19-27% IACS, grain size 15-90 [mu]m, hardness 300-380HV and ultrasonic testing reaching above level A. The matching of high strength, high thermal conductivity and high electrical conductivity of the alloy meets the requirements of strength and heat dissipation performance of conductive elastic components.

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