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• Huang, H
• Zhao, H
• Zhang, Z
• Yang, Z
• Ma, Z
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• Zhao, H
• Zhang, Z
• Yang, Z
• Ma, Z
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• Zhao, H
• Zhang, Z
• Yang, Z
• Ma, Z

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Materials 2012, 5(6), 1033-1039; doi:10.3390/ma5061033

Article

Influences of Sample Preparation on Nanoindentation Behavior of a Zr-Based Bulk Metallic Glass

Hu Huang ¹ , Hongwei Zhao ^1,* , Zhiyu Zhang ² , Zhaojun Yang ¹  and Zhichao Ma ¹

¹ College of Mechanical Science & Engineering, Jilin University, Renmin Street 5988, Changchun 130025, China ² Key Laboratory of Optical System Advanced Manufacturing Technology, Chinese Academy of Science, Changchun 130033, China

* Author to whom correspondence should be addressed.

Received: 6 April 2012; in revised form: 16 May 2012 / Accepted: 29 May 2012 / Published: 1 June 2012

(This article belongs to the Special Issue Creep and Fracture of Engineering Materials and Structures)

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Abstract: Influences of two different sample preparation methods, mechanical polishing and plunge cutting, on nanoindentation behavior of a Zr-based bulk metallic glass were studied. Mechanical polishing suppresses the serrated flow but promotes the creep. In contrast, plunge cutting promotes the serrated flow but suppresses the creep. However, hardness and elastic modulus obtained from these two methods are nearly the same.

Keywords: mechanical polishing; plunge cutting; nanoindentation; serrated flow; creep

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