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制备条件对Zr基大块金属玻璃复合材料组织与性能的影响
  • 期刊名称：特种铸造及有色合金,2006，26（4）:250-252
  • 时间：0
  • 分类：TG146.1[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学] TG113[金属学及工艺—物理冶金;金属学及工艺—金属学]
  • 作者机构：[1]南京理工大学
  • 相关基金：国家自然科学基金资助项目（50431030）;江苏省高技术研究资助项目（BG2005005）
  • 相关项目：超大本征过冷度金属材料纳米亚稳相形成的基础问题
关键词： Zr基大块金属玻璃复合材料, 微观组织, 力学性能
中文摘要：

分别采用低压铸造／水冷铜模急冷成形和熔体水淬的方法制备了Zr56.2：Ti13.8Nb5.0Cu6.9Ni5．6Be12．5内生β相／BMG基体复合材料，表征了材料的微观组织特性，测试了材料的室温压缩性能。结果表明，复合材料的微观组织特性，包括β相的体积分数、形貌和尺寸等，对其制备条件是非常敏感的。不同的制备方法、不同的试样形状与尺寸提供了不同的熔体冷却速率。相对低的熔体冷速导致了更多、更粗大的卢相的形成；复合材料的室温压缩性能取决于其微观组织特性，多而粗大的β相使材料的宏观塑性应变明显增加。

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超大本征过冷度金属材料纳米亚稳相形成的基础问题
期刊论文 108 会议论文 19 著作 4
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