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Effect of processing on Charpy impact toughness of metallic glass matrix composites

机译：加工工艺对金属玻璃基复合材料夏比冲击韧性的影响

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摘要

In this study, compact Charpy impact testing was used to investigate the effect of processing history and dendrite morphology of bulk metallic glass matrix composites (BMGMCs) on impact toughness. Composite samples were fabricated via suction casting and semisolid forging, and the results were compared with crystalline alloys in the same geometry. A strong dependence on processing was observed, with samples exhibiting up to a 30-fold increase in impact toughness depending on processing and microstructure. Provided that attention is paid to processing techniques, BMGMCs are shown to have properties that equal or surpass some conventionally used crystalline alloys. These properties invite further exploration of these materials in structural applications.
机译：在这项研究中，紧凑的夏比冲击试验用于研究加工历史和块状金属玻璃基复合材料（BMGMC）的枝晶形态对冲击韧性的影响。通过吸铸和半固态锻造制备复合材料样品，并将结果与​​相同几何形状的结晶合金进行比较。观察到对加工的强烈依赖性，根据加工和微观结构，样品的冲击韧性最多提高30倍。只要注意加工技术，BMGMC就会显示出等于或超过某些常规使用的结晶合金的性能。这些特性要求在结构应用中进一步探索这些材料。

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  • 来源
    《Journal of Materials Research》 |2011年第10期|p.1260-1268|共9页
  • 作者

    Carl Zachrisson; Henry Kozachkov; Scott Roberts; Georg Kaltenboeck; Robert D. Conner; Marios D. Demetriou; William L. Johnson; Douglas C. Hofmann;

  • 作者单位

    Jet Propulsion Laboratory/California Institute of Technology, Pasadena, California 91109;

    rnCalifornia Institute of Technology, Pasadena, California 91126;

    rnCalifornia Institute of Technology, Pasadena, California 91126;

    rnCalifornia Institute of Technology, Pasadena, California 91126;

    rnCalifornia Institute of Technology, Pasadena, California 91126 and California State University—Northridge, Northridge, California 91330;

    rnCalifornia Institute of Technology, Pasadena, California 91126;

    rnCalifornia Institute of Technology, Pasadena, California 91126;

    rnJet Propulsion Laboratory/California Institute of Technology, Pasadena, California 91109 and California Institute of Technology, Pasadena, California 91126;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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