| Zr55Al10Ni5Cu30块状非晶合金的循环形变及疲劳特性 |
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| 引用本文： | 张庆生,张海峰,吴世丁,丁炳哲,胡壮麒. Zr55Al10Ni5Cu30块状非晶合金的循环形变及疲劳特性[J]. 金属学报, 2002, 38(10): 1097-1099 |
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| 作者姓名： | 张庆生 张海峰 吴世丁 丁炳哲 胡壮麒 |
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| 作者单位： | 中国科学院金属研究所沈阳材料国家(联合)实验室,沈阳,110016 |
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| 基金项目： | 国家重点基础研究发展规划 G2000067201，国家高技术研究发展计划2001AA331010资助项目 |
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| 摘 要： | 对称循环载荷作用下Zr55Al10Ni5Cu30块状非晶合金的循环疲劳特性的测试表明，完全非晶试样在常应力幅循环载荷作用下出现了轻微的循环软化现象，非晶基体中析出的细小淬态相使试样出现了更加明显的循环软化现象，而且细小淬态相在循环载荷作用下有从非晶基体向外突出的趋势，在淬态相与非晶基体的界面处还出现了微裂纹，但是带有粗大晶相块状非晶试样在循环形变过程中循环软化现象又变得不是很明显。
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| 关 键 词： | Zr55Al10Ni5Cu30块状非晶合金 对称循环疲劳 循环硬化／软化 淬态相 |
| 文章编号： | 0412-1961(2002)10-1097-03 |
| 修稿时间： | 2002-01-17 |
CYCLIC DEFORMATION AND FATIGUE BEHAVIOR OF Zr55Al10Ni5Cu30 BULK AMORPHOUS ALLOY |
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| ZHANG Qingsheng,ZHANG Haifeng,WU Shiding,DING Bingzhe,HU ZhuangqiShenyang National Laboratory for Materials Science. CYCLIC DEFORMATION AND FATIGUE BEHAVIOR OF Zr55Al10Ni5Cu30 BULK AMORPHOUS ALLOY[J]. Acta Metallurgica Sinica, 2002, 38(10): 1097-1099 |
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| Authors: | ZHANG Qingsheng ZHANG Haifeng WU Shiding DING Bingzhe HU ZhuangqiShenyang National Laboratory for Materials Science |
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| Affiliation: | ZHANG Qingsheng,ZHANG Haifeng,WU Shiding,DING Bingzhe,HU ZhuangqiShenyang National Laboratory for Materials Science,Institute of Metal Research,The Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | The Zr55Al10Ni5Cu30 bulk amorphous alloy and specimens with quenched-in crystallites were prepared by copper mold casting method, to study the symmetrically cyclic deformation behavior of bulk amorphous alloy. Under symmetrically cyclic loading, the amorphous specimen and the specimen with larger quenched-in crystallites softened slightly. However, a gradual cyclic softening occurred for the amorphous specimen with fine quenched-in crystallites. The fine crystallites seemed to protrude from the amorphous matrix and some bulges appeared on the surface of specimen with fine crystallites under cyclic loading. The presence of crystallites in the amorphous matrix lowered the fatigue properties of material. |
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| Keywords: | Zr55Al10Ni5Cu30 bulk amorphous alloy cyclic deformation cyclic harden- ing/softening quenched-in crystallite |
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