| Zr55Al10Cu30Ni5-xPdx块状非晶合金的玻璃形成能力和热稳定性 |
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| 引用本文： | 秦凤香,张海峰,李宏,丁炳哲,胡壮麒.Zr55Al10Cu30Ni5-xPdx块状非晶合金的玻璃形成能力和热稳定性[J].金属学报,2003,39(3):305-309. |
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| 作者姓名： | 秦凤香 张海峰 李宏 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科学国家(联合)实验室,沈阳,110016 |
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| 基金项目： | 国家高技术研究发展规划2001331010和国家重点基础研究发展规划G2000067201资助项目 |
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| 摘 要： | 用铜模铸造方法制备了不同尺寸的Zr55Al10Cu30Ni5-xPdx(x=0,1,3,5)块状非晶合金，采用X射线衍射（XRD）、扫描差热分析（DSC）和透射电镜（TEM）分别为Zr55Al10Cu30Ni5-xPdx块状非晶样品的结构、热稳定性和微观组织进行了研究。结果表明：x=1时，合金具有最高的过冷液相区（高达100K）及最大的热稳定性，而对合金的玻璃形成能力影响不大，这说明用适量的Pd代表Zr55Al10Cu30Ni5合金中的Ni会提高合金的热稳定性；x=3时，合金的热稳定性有所提高，但降低了合金的玻璃形成能力；x=5时，非晶合金的热稳定性和玻璃形成能力同时降低。
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| 关 键 词： | Zr－Al－Cu－Ni－Pd合金 块状非晶 非晶形成能力 热稳定性 |
| 文章编号： | 0412-1961(2003)03-0305-05 |
| 修稿时间： | 2002年7月23日 |
GLASS-FORMING ABILITY AND THERMAL STABILITY OF BULK Zr55Al10Cu30Ni5-xPdx AMORPHOUS ALLOYS |
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| QIN Fengxiang,ZHANG Haifeng,LI Hong,DING Bingzhe,HU Zhuangqi
Shenyang National Laboratory for Materials Science.GLASS-FORMING ABILITY AND THERMAL STABILITY OF BULK Zr55Al10Cu30Ni5-xPdx AMORPHOUS ALLOYS[J].Acta Metallurgica Sinica,2003,39(3):305-309. |
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| Authors: | QIN Fengxiang ZHANG Haifeng LI Hong DING Bingzhe HU Zhuangqi
Shenyang National Laboratory for Materials Science |
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| Affiliation: | QIN Fengxiang,ZHANG Haifeng,LI Hong,DING Bingzhe,HU Zhuangqi
Shenyang National Laboratory for Materials Science,Institute of Metal Research,The Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | The influence of palladium on glass-forming ability (GFA) of bulk
Zr55Al10Cu30Ni5-xPdx (atomic fraction, %) (x=0, 1, 3, 5) amorphous alloys was investigated by copper mold casting method. The structure, thermal stability and microstructure of the alloys were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and transmission electron microscopy (TEM), respectively. It is identified that a new bulk amorphous alloy with the largest supercooled liquid region TX of 100 K was obtained when x=1. However, as x=3, the thermal stability of alloy increases a little but GFA decreases obviously, when x=5, the thermal stability and GFA decreased simultaneously. It indicates that a proper amount of Pd substituting Ni in the alloy will increase the thermal stability. |
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| Keywords: | Zr-Al-Cu-Ni-Pd alloy bulk amorphous alloy glass-forming ability thermal stability |
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