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大块金属玻璃Zr_(41.2)Ti_(13.8)Cu_(12.5)Ni_(10)Be_(22.5)在玻璃转变区轧制行为的研究
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作者 王国明 肖学山 +2 位作者 方守狮 顾建忠 董平华 《上海大学学报(自然科学版)》 CAS CSCD 2004年第1期1-4,共4页
在玻璃转变区内对大块金属玻璃Zr41.2Ti13.8Cu12.5Ni10Be22.5以不同的轧制率(0%,12.5%,25%,37.5%和50%)进行轧制,用XRD、HRTEM、SEM、DSC和直流四探针法研究了轧制行为对其结构、表面形貌、热性能和相对电阻率的影响.研究结果表明,轧制... 在玻璃转变区内对大块金属玻璃Zr41.2Ti13.8Cu12.5Ni10Be22.5以不同的轧制率(0%,12.5%,25%,37.5%和50%)进行轧制,用XRD、HRTEM、SEM、DSC和直流四探针法研究了轧制行为对其结构、表面形貌、热性能和相对电阻率的影响.研究结果表明,轧制后的试样仍然保持非晶相,但在非晶基体相中已经出现了一些有序团簇;第一晶化峰的起始温度降低,导致过冷液相区变窄,金属玻璃的热稳定性有下降的趋势;同时,随着轧制率的增加,室温表面相对电阻率表现为先上升、后下降的趋势. 展开更多
关键词 轧制 金属玻璃 zr41.2ti13.8cu12.5ni10be22.5
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Deformation of Zr_(41)Ti_(14)Cu_(12.5)Ni_(10)Be_(22.5) bulk amorphous alloy under isobaric pressure in super-cooled liquid region 被引量:2
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作者 张克勤 卢启柱 《中国有色金属学会会刊:英文版》 CSCD 2005年第3期612-614,共3页
The curve of crystallization transition during continuous heating for the Zr41Ti14Cu12.5Ni10Be22.5 bulk amorphous alloy was measured by means of dilatation(Fully automatic transformation recording/measuring instrument... The curve of crystallization transition during continuous heating for the Zr41Ti14Cu12.5Ni10Be22.5 bulk amorphous alloy was measured by means of dilatation(Fully automatic transformation recording/measuring instrument) and X-ray diffraction(XRD) method. The deformation behavior of the alloy at various heating rates in the supercooled liquid region was studied. The results show that the glass transition temperature of the alloy increases slightly and the supercooled liquid region(SLR) increases significantly with increasing heating rate. The deformation amount under isobaric pressure of 1 N for the alloy in the SLR increases with increasing heating rate. As the heating rate of the alloy increases from 5 to 100 ℃/min, the amount of deformation of the alloy increases from 8.3% to 45%. 展开更多
关键词 锆钛镍钡合金 非晶态 超冷液体 形变处理
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