A Ti-based bulk metallic glass composite with excellent tensile properties and significant work-hardening capacity
A Ti-based bulk metallic glass composite with excellent tensile properties and significant work-hardening capacity
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具有优异拉伸性能和显着加工硬化能力的钛基大块金属玻璃复合材料
DOI：
10.1016/j.matlet.2018.08.144
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发表时间：
2018
影响因子：
3
通讯作者：
Zhang Haifeng
中科院分区：
文献类型：
--
作者：
Liu Dingming;Lin Shifeng;Ge Shaofan;Zhu Zhengwang;Fu Huameng;Zhang Haifeng
研制成功了一种具有良好拉伸塑性和加工硬化能力的新型钛基BMGC。采用SEM、XRD、TEM和纳米压痕等手段对复合材料的微观结构、力学行为和增韧机理进行了研究。结果表明，应力诱发马氏体相变和α″相中的机械孪晶是导致这些力学行为的主要原因。目前的工作提供了一个新的视角，开发原位枝晶增强BMGCs具有改善均匀的延展性和显着的加工硬化能力。
A new Ti-based BMGC with excellent tensile plasticity and significant work-hardening capacity was successfully developed. The microstructure, mechanical behaviors and toughening mechanisms were investigated in details by SEM, XRD, TEM and Nano-indentation. It is found that the stress-induced martensitic transformation from β to α″ phase and the mechanical twinning in the α″ phase combined to account for these mechanical behaviors. The current work offers a new perspective for developingin situdendrite reinforced BMGCs with improved homogeneous ductility and significant work-hardening capacity.