NANOSCALE DIMPLES AND PERIODIC CORRUGATIONS ON FRACTURE SURFACE OF Zr-BASED BULK METALLIC GLASS COMPOSITE

Bo Shi, Shiyu Luan and Peipeng Jin
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Bo Shi: Qinghai Provincial Key Laboratory of New Light Alloys, Qinghai Provincial Engineering Research Center of High Performance, Light Metal Alloys and Forming, Qinghai University, Xining 810016, P. R. China
Shiyu Luan: Qinghai Provincial Key Laboratory of New Light Alloys, Qinghai Provincial Engineering Research Center of High Performance, Light Metal Alloys and Forming, Qinghai University, Xining 810016, P. R. China
Peipeng Jin: Qinghai Provincial Key Laboratory of New Light Alloys, Qinghai Provincial Engineering Research Center of High Performance, Light Metal Alloys and Forming, Qinghai University, Xining 810016, P. R. China

Surface Review and Letters (SRL), 2019, vol. 26, issue 08, 1-5

Abstract: Nanoscale dimples and periodic corrugations are observed on the fracture surface of Zr-based bulk metallic glass composite (BMGC). The nanoscale periodic corrugations display a curved shape, which is different from that observed in previous works. In addition, the crystallization behavior of Zr64.13Cu15.75Ni10.12Al10 BMG was investigated. The second crystallization event of Zr-Cu-Ni-Al BMG can be controlled by annealing or tuning cooling rate. The in situ Zr-based BMGC was prepared via lowering cooling rate. The Zr-based BMGC displays completely brittleness.

Keywords: Bulk metallic glass; fracture surface; nanoscale dimple; nanoscale periodic corrugation (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X19500379

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