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大块非晶合金的复合韧化研究进展
  • 期刊名称：稀有金属材料与工程, 35(2006), 4: 510～515
  • 时间：0
  • 分类：TG139[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构：[1]南京理工大学,江苏,南京,210094 南京理工大学,江苏,南京,210094 南京理工大学,江苏,南京,210094 南京理工大学,江苏,南京,210094
  • 相关基金：国家自然科学基金重点项目(50431030),江苏省高技术研究计划项目(BG2005005)和南京理工大学青年学者基金(Njust200404)
  • 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： 大块非晶合金, 室温塑性, 剪切带, 韧化, bulk metallic glasses, room temperature ductility, shear band, toughen
中文摘要：

大块非晶合金具有高强度(～2 GPa),大的弹性极限(2%～3%)及良好的耐腐蚀性等优异性能,但室温塑性低限制了大块非晶合金在工程上的实际应用.本文从大块非晶合金变形与断裂的微观机制出发探讨了其室温脆性的本质,并总结了通过在大块非晶合金基体中引入第二相(外加或原位生成)来改善其室温塑性的复合韧化研究进展.

英文摘要：

Bulk metallic glasses have unique mechanical properties, including high strengths (similar to 2 GPa), large elastic limits (2%similar to 3%), and excel lent resistance to corrosion, but the poor room temperature ductility restricts its applications as structural materials. In this paper, the room temperature brittleness of bulk metallic glasses was discussed based on the deformation and fracture mechanism, and the progress in improving room temperature ductility by introducing second phase in the amorphous matrix was summarized.

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