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作者:O.N. Senkov , S.I. Rao , T.M. Butler ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020, Vol.89
摘要:Abstract(#br)Two Nb-Mo-Ti alloys were modified by additions of 2 at.% Fe. These small additions of Fe did not form secondary phases but noticeably increased the strength of the Nb-Mo-Ti alloys in the temperature range of 25 to 1200 °C due to solid solution strengthening effe...
作者:D. Terentyev , Xiazi Xiao , S. Lemeshko ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020, Vol.89
摘要:Abstract(#br)Knowledge of mechanical properties of the tungsten surface region is extremely important for its application as first wall materials in plasma-facing components for nuclear fusion devices (e.g. ITER). Since tungsten is intrinsically brittle at room temperature, ...
作者:Randall M. German
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020, Vol.89
摘要:Abstract(#br)The sintering densification trajectory for titanium powder is identified in terms of the interaction between mass transport processes and microstructure evolution. During initial heating, as surface oxides dissolve, surface diffusion forms bonds between contacti...
作者:Martin Koller , Monika Vilémová , František Lukáč ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020
摘要:Abstract(#br)High-temperature internal friction in a pure tungsten single crystal, polycrystals with different grain sizes, and mechanically alloyed tungsten polycrystals was studied. Positron annihilation spectroscopy was used to prove that all studied materials contain a d...
作者:Xuezhi Shi , Huaxue Wang , Wuwei Feng ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020
摘要:Abstract(#br)In this study, a broad range of parameter combinations (laser power: 100–400 W; scanning speed: 10–90 mm/s) were used to fabricate Ti-47Al-2Cr-2Nb alloy at the layer thickness of 100 μm by selective laser melting (SLM). The preparation of the TiAl-single tr...
作者:Hui Xie , Fuming Deng , Hao Wang ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020, Vol.89
摘要:Abstract(#br)This study provides a proportioning design method for the polycrystalline cubic boron nitride (PcBN) composite based on dense packing theory with the use of the Horsfield dense filling theory and Dinger–Funk equation. Subsequently, three proportioning schemes of...
作者:Mehdi Fattahi , Mehdi Shahedi Asl , Seyed Ali Delbari ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020
摘要:Abstract(#br)In this research, various amounts of nano-sized tungsten carbide (WC n : 0, 1.5, and 3 wt%) were added to TiC-10 vol% SiC w system. All samples were sintered at 1900 °C under an external pressure of 40 MPa for 7 min by spark plasma sintering (SPS) procedure. Mic...
作者:Jingjing Wu , Shaohe Zhang , Leilei Liu ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020, Vol.89
摘要:Abstract(#br)In order to improve the rock-breaking efficiency in hard rock formations, this paper presents an impregnated diamond bit with a special matrix structure. The grid-shaped matrix is designed to achieve large volume breakage so that the rock breaking efficiency can be g...
作者:D. Terentyev , Monika Vilémová , Chao Yin ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020, Vol.89
摘要:Abstract(#br)Production and supply of tungsten for the first wall fusion application is becoming an important aspect given the progress of ITER construction. Exploration of advanced routes alternative to the conventional powder metallurgy is currently undertaken. In this wor...
作者:Dongwook Lim , Bonil Ku , Dongjo Seo ...
来源:[J].International Journal of Refractory Metals and Hard Materials(IF 1.858), 2020, Vol.89
摘要:Abstract(#br)Herein, chromium film was successfully synthesized by pulse-reverse (PR) electrodeposition using various anodic current time in a Sargent bath which is mainly composed of hexavalent chromium (Cr 6+ ) and sulfuric acid (H 2 SO 4 ). The correlation between anodic time ...

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