Browsing NTNU Open by Author "liu, yuyu"
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Grain refinement of Ti6Al4V by incorporating in-situ TiB nanowhiskers in laser melting deposition
Fu, Ke; liu, yuyu; Wang, Yeqing; Xu, Zhe; Jiang, Wei; Chen, Zheng; Liu, Siqi; Sun, Li; Zhang, Zhiliang; He, Jianying (Journal article; Peer reviewed, 2023)One of the known problems in laser melting deposition (LMD) of alloys is columnar grain morphology and large grain size. Adding reinforcements is generally suggested as a viable approach to tailor the microstructure and ... -
Nanoscale creep behavior and its size dependency of a Zr-based bulk metallic glass manufactured by selective laser melting
Liu, Siqi; Chang, Zexin; Fu, Yuequn; liu, yuyu; Lin, Meichao; Ren, Xiaobo; Wang, Wenxian; Zhang, Zhiliang; He, Jianying (Journal article; Peer reviewed, 2022)Nanoscale creep behaviors of metallic glasses (MGs) have gathered considerable interests in recent years, owing to their distinct atomistic mechanisms of plasticity. Additive manufacturing (AM) is a burgeoning technique ... -
Nanosized SiC particle reinforced Ti6Al4V matrix composites manufactured by laser melting deposition
liu, yuyu; Chen, Zheng; He, Jianying (Peer reviewed; Journal article, 2022)In this work, in-situ (TiC+Ti5Si3)/Ti6Al4V matrix composites (TMCs) with enhanced hardness and wear performance were manufactured by laser melting deposition (LMD) via the addition of nanosized SiC powder. The microstructures ... -
Optimization of Processing Parameters and Microstructure Evolution of (TiB+La2O3)/Ti6Al4V Manufactured by Laser Melting Deposition
liu, yuyu; Jiang, Wei; Chen, Zheng; Xu, Quan; Zhang, Zhiliang; He, Jianying (Peer reviewed; Journal article, 2023)Due to the intrinsically ultrahigh cooling rate and thermal gradient during laser melting deposition (LMD), columnar-to-equiaxed transition (CET) of grains has been a significant challenge in titanium-based alloys. In this ...