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and the latest advancements in this field, the derived trends and projected developments provide a clear and challenging future for the energy-absorption structure of railway vehicles. 2 Research approaches......
dark field (HAADF) TEM observations were carried out on a Tecnai-F20 operated at 200 kV. The XRD samples are cut from the middle part of the creep- aged samples by an electrical discharge machine......
temperatures applied in industrial systems usually range from 20 to 40 °C (GB-50771-2012). An excessive working temperature has a relatively large impact on the field operation, material consumption......
dissipation [3] and fatigue [4], impact [5], and freezing resistance [6],among other properties. As we all know, a series of properties of materials fundamentally determine the field in which materials can......
-超大型钨锡铅锌多金属矿田(床)[22]. 图1 (a)湘南区域地质矿产简图[22]和(b)香花岭矿田地质简图[23] Fig. 1 (a) Simplified geological and mineral map of Southern Hunan[22] and (b) simplified geological map of the Xianghualing ore field[23... field[J]. Mineral Resources and Geology, 1991, 5(4): 272-283. [26] 来守华. 湖南香花岭锡多金属矿床成矿作用研究[D]. 北京: 中国地质大学(北京), 2014. LAI Shou-hua. Research on mineralization of the Xianghualing tin polymetallic deposit......
. Specifically, for the optical microscopy (OM, Zeiss Imager A1m) characterization, the sample was prepared by anodic coating at 0 °C in the solution of 2.5 vol.% HBF4 for 30 s at the voltage of 20 V. The field-emission scanning electron microscope (SEM, TESCAN MAIA3) was equipped with an energy dispersive X-ray spectrometry (EDS) system. Unless otherwise noted, the SEM micrograph was taken under......
on the ductile fracture of heat-treatable aluminum alloys[J]. Acta Materialia, 2005, 53(12): 3459-3468. [14] Zuo Y, Nagaumi H, Cui J. Study on the sump and temperature field during low frequency......
FeCoCrNiMn合金拉伸后的明场像 Fig. 9 Bright field images of FeCoCrNiMn alloy after tensile test 位错运动通常是BCC结构难熔高熵合金的主要变形机制.例如,WU等[101]研究了TaNbHfZrTi难熔高熵合金在轧制过程中的微观结构演变.研究表明TaNbHfZrTi合金的轧制变形过程主要由位错运动主导.其位错运动......
Trans. Nonferrous Met. Soc. China 28(2018) 193-219 Review on underwater friction stir welding: A variant of friction stir welding with great potential of improving joint properties Mohd. Atif WAHID, Zahid A. KHAN, Arshad Noor SIDDIQUEE Department of Mechanical Engineering, Jamia Millia Islamia, New ......
