3 GPa压力处理对Cu-Zn合金热膨胀系数的影响

王海燕; 刘琳; 彭桂荣; 刘建华

doi:10.11858/gywlxb.2010.02.008

3 GPa压力处理对Cu-Zn合金热膨胀系数的影响

doi: 10.11858/gywlxb.2010.02.008

1.
燕山大学应用化学河北省重点实验室，河北秦皇岛 066004；
2.
唐山职业技术学院，河北唐山 063004；
3.
燕山大学亚稳材料制备技术与科学国家重点实验室，河北秦皇岛 066004

详细信息

通讯作者:
王海燕

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出版历程
- 收稿日期: 2009-11-02
- 修回日期: 2009-11-20
- 发布日期: 2010-04-15

Effects of 3 GPa Pressure Treatment on the Thermal Expansion of Cu-Zn Alloy

1.
Provincial Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, China;
2.
Tangshan Vocational Technology College, Tangshan 063004, China;
3.
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China

More Information

Corresponding author: WANG Hai-Yan

摘要

摘要: 利用膨胀仪测试了Cu-Zn合金在3 GPa压力处理前后、25～700 ℃温度范围内的热膨胀系数；借助金相显微镜、X射线衍射（XRD）及差示扫描量热分析（DSC）技术，对高压处理前后合金的金相组织及相变进行了分析。在此基础上，探讨了高压处理对Cu-Zn合金热膨胀性能的影响。结果表明：高压处理能增大Cu-Zn合金的热膨胀系数，改变热膨胀系数随温度的变化规律，当温度为535.14 ℃时，热膨胀系数呈现高峰值，较同等温度未经高压处理的Cu-Zn合金的热膨胀系数增大了49.48%。
- Cu-Zn合金 /
- 热膨胀系数 /
- 高压
Abstract: The coefficients of thermal expansion of Cu-Zn alloy between 25～700 ℃, which was before and after 3 GPa high-pressure treatment, were measured by the DIL402C thermal expansion instrument. In addition, the metallurgical microscope, X-ray diffraction (XRD), and differential scanning calorimetry (DSC) were employed to characterize the microstructures and phase transformation of the alloy. Based on the experimental results, the effects of high-pressure treatment on the thermal expansion of Cu-Zn alloy were investigated. The high-pressure treatment can obviously increase the thermal expansivity of Cu-Zn alloy and change the trend of the thermal expansion curve. At 535.14 ℃, the thermal expansion curve after the high-pressure treatment reaches its peak value, which is 49.48% larger than the untreated alloy.
- Cu-Zn alloy /
- thermal expansivity /
- high pressure

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参考文献(17)

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