Understanding stacking fault tetrahedron formation in FCC …
2024年12月1日 · Stacking fault tetrahedron (SFT) formation in FCC austenitic steel was studied. A new twin-boundary-induced SFT formation mechanism was proposed. Frank loops …
High-resolution TEM of SFTs and their interaction ... - ResearchGate
In this work, the transmission electron microscopy (TEM) observations indicate that the stepped twins could be generated in the Ag sheath after high-energy He+ ion irradiation, in...
Removal of stacking-fault tetrahedra by twin boundaries in ... - Nature
2013年1月22日 · SFTs, the predominant type of vacancy clusters in irradiated Cu, Ni, Ag and Au 34 in the absence of noble gas, can expand (or shrink) by absorbing a vacancy (or an …
Direct formation of novel Frank loop and stacking-fault …
2023年9月15日 · Here, combining in-situ TEM experiments and molecular dynamics (MD) simulations, we report the nucleation and growth of a novel complex of SFTs and Frank loops …
Introducing vacancy defects by rapid quenching in FCC metal for …
2024年5月1日 · Quenching coupled with post-annealing techniques is an efficient strategy for introducing vacancy defects in FCC metals. The subsequent quantitative TEM characterization …
材料学院曾卫东教授团队在保载疲劳失效分析研究领域取得新进展
孪晶内高密度的锥面< c+a >位错及其分解形成的具有特定纳米间距的基面堆垛层错(SFTs)，使得协调过程伴随着孪晶内部显著的晶格畸变。 这些基面晶粒中新形成的纳米孪晶界和SFTs作为位 …
西北工业大学《IJP》：钛合金的保载疲劳失效分析研究新进展！
2024年10月20日 · 孪晶内高密度的锥面< c+a >位错及其分解形成的具有特定纳米间距的基面堆垛层错(SFTs)，使得协调过程伴随着孪晶内部显著的晶格畸变。 这些基面晶粒中新形成的纳米 …
《Scripta Materialia》石墨烯铜界面缺陷湮灭能力的增强原位研究
2024年7月5日 · 在这项工作中，通过制备石墨烯/铜复合材料，并在透射电子显微镜(TEM)内进行原位Kr++离子辐照，直接比较了Cu/Cu高角晶界（HAGB）和Gr/Cu异质界面之间的缺陷演变行 …
| High-resolution TEM of SFTs and their interaction
Besides bright-field TEM, extensive dark-field TEM and high resolution TEM (HRTEM) studies were also performed to identify SFTs and determine their density (Supplementary Fig. S3).
In the present study, we investigate the formation of SFTs in the equiatomic Cr-Co-Ni MEA by transmission electron microscopy (TEM), to see if SFTs are indeed formed only by quenching.