首页|Effect of Al addition on formation and mechanical properties of Mg-Cu-Gd bulk metallic glass

Effect of Al addition on formation and mechanical properties of Mg-Cu-Gd bulk metallic glass

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The effect of partial substitution of Al for Cu on the glass forming ability(GFA) and mechanical properties of Mg_(65)Cu_(25-x)Al_xGd_(10)(x=0, 1, 3 and 5, molar fraction, %) alloys were studied by X-ray diffractometry(XRD), differential scanning calorimetry(DSC) and uniaxial compression test. The result reveals that GFA of the alloys changes slightly with increasing x from 0 to 3, and then abruptly decreases with x increasing up to 5. The plasticity can be greatly improved with appropriate substitution of Cu by Al (3%, molar fraction) in Mg_(65)Cu_(25)Gd_(10) bulk metallic glass, and the resultant fracture strength, total strain to failure, and plastic strain are 898 MPa, 2.19% and 0.2%, respectively.

mg-based bulk metallic glassesglass forming abilitymechanical propertiesplastic strain

GENG Jia-yuan、SUN Yu-feng、WANG Li-guo、ZHU Shi-jie、LIU Li-zhao、GUAN Shao-kang

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School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China

2007

Transactions of Nonferrous Metals Society of China

Transactions of Nonferrous Metals Society of China

ISTP
ISSN:1003-6326
年,卷(期):2007.17(5)