In situ TEM observation of FCC Ti formation at elevated temperatures
In situ TEM observation of FCC Ti formation at elevated temperatures
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高温下 FCC Ti 形成的原位 TEM 观察
DOI：
10.1016/j.scriptamat.2017.06.033
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发表时间：
2017-11
影响因子：
6
通讯作者：
Minor Andrew M.
中科院分区：
文献类型：
--
作者：
Yu Qian;Kacher Josh;Gammer Christoph;Traylor Rachel;Samanta Amit;Yang Zhenzhong;Minor Andrew M.
纯钛传统上在环境条件下表现出六方密堆积（HCP）晶体结构，在高温下表现出体心立方（BCC）结构。除了这些典型的钛合金结构，面心立方（FCC）相的存在与薄膜，界面，或高水平的塑性变形偶尔有报道。在这里，我们表明，小FCC沉淀形成在独立的薄箔duringin situ透射电子显微镜（TEM）加热，我们讨论了潜在的起源的FCC相在thein situ观察。发现这种FCC相在冷却和环境条件下是稳定的，这使我们能够通过原位TEM测试探索其机械性能和稳定性。结果发现，在HCP基质相中的FCC片晶在机械变形下是稳定的，并且表现出与母体HCP相类似的机械变形行为。
Pure Ti traditionally exhibits the hexagonal closed packed (HCP) crystallographic structure under ambient conditions and the body centered cubic (BCC) structure at elevated temperatures. In addition to these typical structures for Ti alloys, the presence of a face centered cubic (FCC) phase associated with thin films, interfaces, or high levels of plastic deformation has occasionally been reported. Here we show that small FCC precipitates form in freestanding thin foils duringin situtransmission electron microscope (TEM) heating and we discuss the potential origins of the FCC phase in light of thein situobservations. This FCC phase was found to be stable upon cooling and under ambient conditions, which allowed us to explore its mechanical properties and stabilityviananomechanicalin situTEM testing. It was found that FCC platelets within the HCP matrix phase were stable under mechanical deformation and exhibited similar mechanical deformation behavior as the parent HCP phase.
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影响因子：
3
作者：
D. Josell;D. Shechtman;D. Heerden
通讯作者：
D. Josell;D. Shechtman;D. Heerden
影响因子：
3.7
作者：
Shiyun Xiong;W. Qi;Bai-yun Huang;Mingpu Wang;Zhou Li;S. Liang
通讯作者：
Shiyun Xiong;W. Qi;Bai-yun Huang;Mingpu Wang;Zhou Li;S. Liang
DOI：
--
发表时间：
2007
期刊：
--
影响因子：
--
作者：
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通讯作者：
S. Banerjee;P. Mukhopadhyay
影响因子：
3
作者：
D.L Zhang;D. Ying
通讯作者：
D.L Zhang;D. Ying
影响因子：
1.6
作者：
Bauer, Rico;Jaegle, Eric A.;Mittemeijer, Eric Jan
通讯作者：
Mittemeijer, Eric Jan