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| 3GPa压力处理对Cu-Zn合金热膨胀系数的影响 | |
| 引用本文： | 王海燕,刘琳,彭桂荣,刘建华.3GPa压力处理对Cu-Zn合金热膨胀系数的影响[J].高压物理学报,2010,24(2). |
| 作者姓名： | 王海燕 刘琳 彭桂荣 刘建华 |
| 作者单位： | 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 |
| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
| 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%。 |
| 关 键 词： | Cu-Zn合金 热膨胀系数 高压 |
| 收稿时间： | 2009-11-02; |
Effects of 3 GPa Pressure Treatment on the Thermal Expansion of Cu-Zn Alloy |
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| WANG Hai-Yan,LIU Lin,PENG Gui-Rong,LIU Jian-Hua.Effects of 3 GPa Pressure Treatment on the Thermal Expansion of Cu-Zn Alloy[J].Chinese Journal of High Pressure Physics,2010,24(2). | |
| Authors: | WANG Hai-Yan LIU Lin PENG Gui-Rong LIU Jian-Hua |
| Institution: | 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 |
| 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. |
| Keywords: | Cu-Zn alloy thermal expansivity high pressure |
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