金属学报  1986, Vol. 22 Issue (6): 135-138

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Pd-Si基非晶金属的拉伸膨胀及转变过程的体积效应

郑福前;胡健松

昆明贵金属研究所;昆明贵金属研究所

THERMAL EXPANSION OF PdSi-BASE AMORPHOUS METALS AND THEIR VOLUME EFFECT ON TRANSFORMATION

by ZHENG Fuqian; HU Jiansong (Institute of Precious Metals Reseaerch; Kunming)

郑福前;胡健松. Pd-Si基非晶金属的拉伸膨胀及转变过程的体积效应[J]. 金属学报, 1986, 22(6): 135-138.
, . THERMAL EXPANSION OF PdSi-BASE AMORPHOUS METALS AND THEIR VOLUME EFFECT ON TRANSFORMATION[J]. Acta Metall Sin, 1986, 22(6): 135-138.

摘要 参考文献 相关文章 Metrics 全文: PDF(308 KB)   摘要: <正> 非晶态金属在升温过程中体积膨胀、过剩自由体积减少及重新分配同时发生,在比较高的温度还出现玻璃转变和结晶过程,致使长度较一般金属材料发生更复杂的变化。非晶态金属的膨胀特点很像氧化物玻璃。为了进一步认识其膨胀规律,本文用拉伸法测量了6种Pd-Si基金属玻璃的膨胀过程。 非晶态合金条带在离心铜转鼓上获得,宽0.5mm左右,厚0.03mm左右。被测样品采取淬火态(经室温长期稳定化)和退火态(以10℃/min的速度升温至玻璃转变温度之后冷却到室温)。 因为非晶条带很薄,热膨胀需用拉伸法测量,装置如文献[5]中描述。样品的有效长度为30mm。用温度程序控制器控温,全部实验采用升温速率为10℃/min,流动氩气保护。拉伸负 Abstract：The volume effect of 6 PdSi-base amorphous alloys on heating has been measured by a tension method. The fractional free volume of 3 ternary alloys at the glass transition temperature is calculated to be 0.02—0.03 which is approaching the value 0.025 of ordinary amorphous materials. The relationship between free volume increment of 6 materials in equilibrium state and relative viscosity is consistent with the viscous flow free volume model. 收稿日期: 1986-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 郑福前 胡健松 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I6/135 1 Chen, H.S.,; Krause, J.T.; Sigety, F. A., J. Non-Cryst. Solids, 13 (1973/74) , 321． 2 Shelby, J.E., J. Non-Cryst. Solids, 34 (1979) , 111． 3 Brooks, H. A., J. Appl. Phys., 49 (1978) , 213． 4 Tan Qing-Lin (谭庆麟); Liu Xiong (刘雄); Zheng Fuqian (郑福前); Gao Yiqun (高逸群), Thermal Analysis, Vol. 1, Proc. of the 7th Int. Conf. on Thermal Analysis, Ed. Miller, B., Wiley, Heyden, 1982, p. 406． 5 高逸群;郑福前;刘雄;廖宗尧,金属学报,18 (1982) ,696。 6 Williams, M.L.; Landel, R.F.; Ferry, J.D., J. Am. Chem. Soc., 77 (1955) , 3701． 7 Ramachandrarao, P.; Cantor, B.; Cahn R.W.; J. Mater, Sci., 12 (1977) , 2488． 8 郑福前;廖宗尧;胡健松,金属学报,22 (1986) ,B15 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed