Influence of Isothermal Annealing on the Micro-Hardness and Friction Property in CuZrAl Bulk Metallic Glass

Abstract:

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A Cu55Zr40Al5 bulk metallic glass (BMG) was prepared by using copper-mold suction-casting and the structure and thermal stabilities of the amorphous alloy as well as the effect of isothermal annealing on its micro-hardness and friction property were studied. The results showed the glass transition temperature, onset temperature of exothermic reaction, and temperature interval of supercooled liquid region are 746.8 K, 793.5 K and 46.7 K, respectively. The BMG exhibits a micro-hardness value of 483.5 Hv and an average friction coefficient of 0.495. After isothermal annealing treatment, the micro-hardness has been enhanced and presents an upward trend with increasing the annealing temperatures. Meanwhile, the friction coefficients can be significantly decreased and the anti-wear property has been enhanced evidently.

Info:

Periodical:

Advanced Materials Research (Volumes 146-147)

Edited by:

Sihai Jiao, Zhengyi Jiang and Jinglong Bu

Pages:

615-618

DOI:

10.4028/www.scientific.net/AMR.146-147.615

Citation:

P. J. Tao et al., "Influence of Isothermal Annealing on the Micro-Hardness and Friction Property in CuZrAl Bulk Metallic Glass", Advanced Materials Research, Vols. 146-147, pp. 615-618, 2011

Online since:

October 2010

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Price:

$35.00

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