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一起超面积病床电梯溜车事故引发的思考
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作者 杨峰 石琪晟 +1 位作者 虞杰 史锦耀 《中国特种设备安全》 2017年第1期71-74,共4页
超面积病床电梯的出现是为了满足医院特殊的使用需求,但这些电梯在改变了原有的用途后,存在很大的安全隐患,尤其是超载后溜车。本文介绍了超面积病床电梯的现状,并对一起溜车事故进行分析,指出在日常检验时应注意的事项,避免超面积电梯... 超面积病床电梯的出现是为了满足医院特殊的使用需求,但这些电梯在改变了原有的用途后,存在很大的安全隐患,尤其是超载后溜车。本文介绍了超面积病床电梯的现状,并对一起溜车事故进行分析,指出在日常检验时应注意的事项,避免超面积电梯发生安全事故。 展开更多
关键词 超面积 溜车 曳引力
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In Situ Electron Backscatter Diff raction Analysis for Microstructure Evolution and Deformation Models of Mg–Ce Alloy During Uniaxial Loading
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作者 Fang-Wei Jiao Li Jin +1 位作者 Jie Dong Feng-Hua Wang 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2019年第2期263-268,共6页
Previous studies showed that signifi cant increases in elongation in Mg–Ce alloys due to the Ce addition and the solute drag eff ect by Ce addition were ascribed to the non-basal dislocation slip activating and the t... Previous studies showed that signifi cant increases in elongation in Mg–Ce alloys due to the Ce addition and the solute drag eff ect by Ce addition were ascribed to the non-basal dislocation slip activating and the texture altering. The microstructure evolution and deformation models of extruded Mg-0.5 wt%Ce alloy rods under uniaxial tension have been studied using in situ electron backscatter diff raction. The basal and non-basal slips were characterized by using slip line trace analysis. The results provide evidence for that pyramidal slip activated during deformation, besides basal slip and extension twinning, which contributes to the texture weakening and ductility increasing in Mg-0.5 wt%Ce alloy. 展开更多
关键词 Texture Non-basal slip TWINNING In SITU ELECTRON backscattered diff raction(EBSD) Trace ANALYSIS
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