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| 熔体过热水平对Cu36Zr48Ag8Al8块体非晶合金热稳定性和力学性能的影响 | |
| 引用本文： | 赵燕春,寇生中,王仁军,索红莉,丁雨田,李 娜,薛书微,刘广桥.熔体过热水平对Cu36Zr48Ag8Al8块体非晶合金热稳定性和力学性能的影响[J].稀有金属材料与工程,2011,40(1):173-176. |
| 作者姓名： | 赵燕春 寇生中 王仁军 索红莉 丁雨田 李 娜 薛书微 刘广桥 |
| 作者单位： | 1. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050 2. 兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,甘肃,兰州,730050;北京工业大学,国家教育部功能材料重点实验室,北京,100022 3. 北京工业大学,国家教育部功能材料重点实验室,北京,100022 |
| 基金项目： | 国家自然科学基金(50371016)；国家自然科学基金委中-英国际合作与交流基金(50611130629) |
| 摘 要： | 熔体过热度对Cu36Zr48Ag8Al8块体非晶合金的热稳定性和力学行为有显著影响。高的过热水平制备非晶合金的比热容大，初始缺陷密度小，热稳定性高。过热度越小，压缩塑性越小；抗压强度和维氏硬度随着过热度的减小先增加后下降。自由体积和残余应力共同影响不同吸铸电压制得非晶合金的力学性能 |
| 关 键 词： | 金属玻璃 过热水平 热稳定性 力学性能 |
| 收稿时间： | 2010/1/15 0:00:00 |
Effect of Overheated Level on Thermal Stability and Mechanical Properties of Cu36Zr48Ag8Al8 Bulk Metallic Glass |
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| Zhao Yanchun,Kou Shengzhong,Wang Renjun,Suo Hongli,Ding Yutian,Li N,Xue Shuwei and Liu Guangqiao.Effect of Overheated Level on Thermal Stability and Mechanical Properties of Cu36Zr48Ag8Al8 Bulk Metallic Glass[J].Rare Metal Materials and Engineering,2011,40(1):173-176. | |
| Authors: | Zhao Yanchun Kou Shengzhong Wang Renjun Suo Hongli Ding Yutian Li N Xue Shuwei and Liu Guangqiao |
| Affiliation: | State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China |
| Abstract: | Overheating has a pronounced effect on the thermal stability and mechanical properties of Cu36Zr48Ag8Al8 bulk metallic glass. Higher overheated temperature can enhance the thermal stability of bulk amorphous alloys, corresponding to higher specific-heat capacity and smaller initial defect concentration. Bulk amorphous alloys exhibit good compressive plasticity at small overheated levels, whereas the compressive fracture strength and microhardness show a significant increase followed by a slight decrease. The mechanical properties of bulk metallic glasses fabricated by different casting process are influenced by the interaction of the free volume and residual stresses |
| Keywords: | bulk metallic glass overheated level thermal stability mechanical properties |
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