Acta Metall Sin  2005, Vol. 41 Issue (7): 738-742     DOI:

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Influence of Cr Micro-Addition on the Glass Forming Ability and Corrosion Resistance of Cu--Based Bulk Metallic Glasses

LIU Bing; LIU Lin ;SUN Min; QIU Chunlei; CHEN Qi

The State Key Laboratory of Plastic Forming Stimulation and Die & Mould Technology; Department of Materials Science and Technology; Huazhong University of Science and Technology; Wuhan 430074

LIU Bing; LIU Lin; SUN Min; QIU Chunlei; CHEN Qi. Influence of Cr Micro-Addition on the Glass Forming Ability and Corrosion Resistance of Cu--Based Bulk Metallic Glasses. Acta Metall Sin, 2005, 41(7): 738-742 .

Abstract References Related Articles Recommended Metrics Download:  PDF(244KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Cu47Zr11Ti34Ni8)100-xCrx(x=0, 0.5 and 1.0) bulk metallic glasses (BMGs) were obtained by water--cooled copper mold casting. The effect of Cr micro--addition on the glass--forming ability (GFA) of the alloys was investigated by means of XRD, DSC and DTA. It was found that Cr micro--addition can enhance the GFA. Electrochemical measurements were carried out in 1 mol/L HCl, 3% NaCl and 6 mol/L KOH aqueous solutions by potentiadynamic polarization method at room temperature. It is shown that all the BMGs exhibited spontaneous passivation in the above electrolytes, and with the increase of Cr content, the passive zone remarkably increased and the passive current density decreased, implying better corrosion resistance of Cu-based BMGs with higher Cr content. The present results also demonstrated that the corrosion resistance of Cu--based BMGs with Cr micro--addition is much better than that of the stainless steel. Key words:  Cu--based metallic glass      microalloying      glass--forming ability       Received:  04 November 2004      ZTFLH:  TB383   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors LIU Bing LIU Lin SUN Min QIU Chunlei CHEN Qi URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2005/V41/I7/738 [1] Lin X H, Johnson W L. J Appl Phys, 1995; 78: 6514 [2] Inoue A, Zhang W, Zhang T, Kurosaka K. J Non-Cryst Solids, 2002; 304: 200 [3] Inoue A, Zhang W, Zhang T, Kurosaka K. Acta Mater, 2001; 49: 2645 [4] Choi-Yim H, Busch R, Johnson W L. J Appl Phys, 1998; 83: 7993 [5] Li C F, Saida J, Matsushida M, Inoue A. Scr Mater, 2000; 42: 923 [6] Zhang Q S, Zhang H F, Deng Y F, Ding B Z, Hu Z Q. Scr Mater, 2003; 49: 273 [7] Zhang T, Yamamoto T, Inoue A. 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