典型文献
High-temperature mechanical properties of as-extruded AZ80 magnesium alloy at different strain rates
文献摘要：
The mechanical properties of as-extruded AZ80 magnesium alloy at temperatures of 450–525℃ and strain rates of 3.0 s?1 and 0.15 s?1 were investigated by tensile tests. Zero ductility of alloy appeared at 500℃ with a strain rate of 0.15 s?1, while the zero strength and zero ductility of the alloy were obtained nearly simultaneously at 525℃ with a strain rate of 3.0 s?1. The results indicated that the lower strain rate accelerated the arrival of zero ductility. As the temperature increased, the failure mode of the alloy developed from trans-granular fracture to cleavage fracture and then to inter-granular fracture with the feature of sugar-like grains and fusion traces. The existence of the low-melting composite of β-Mg17Al12 and Al8Mn5 particles segregated near the Mg17Al12 phase along grain boundaries were demonstrated to be the reason for the brittle fracturing of the AZ80 alloy at high temperatures. Furthermore, microstructural evolution at temperatures approaching the solidus temperature was discussed to clarify magnesium alloy's high temperature deformation mechanism.
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作者姓名：
Wenjun Liu;Bin Jiang;Hongchen Xiang;Qing Ye;Shengqi Xia;Siqiang Chen;Jiangfeng Song;Yanlong Ma;Mingbo Yang
作者机构：
College of Materials Science and Engineering,Chongqing University of Technology,Chongqing 400054,China;Chongqing Tsingshan Industrial,Chongqing 402761,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China
文献出处：
引用格式：
[1]Wenjun Liu;Bin Jiang;Hongchen Xiang;Qing Ye;Shengqi Xia;Siqiang Chen;Jiangfeng Song;Yanlong Ma;Mingbo Yang-.High-temperature mechanical properties of as-extruded AZ80 magnesium alloy at different strain rates)[J].矿物冶金与材料学报,2022(07):1373-1379
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High,mechanical,properties,extruded,AZ80,magnesium,alloy,different,strain,rates,temperatures,were,investigated,by,tensile,tests,Zero,ductility,appeared,while,zero,strength,obtained,nearly,simultaneously,results,indicated,that,lower,accelerated,arrival,increased,failure,mode,developed,from,trans,granular,fracture,cleavage,then,inter,feature,sugar,like,grains,fusion,traces,existence,melting,composite,Mg17Al12,Al8Mn5,particles,segregated,phase,along,boundaries,demonstrated,be,reason,brittle,fracturing,high,Furthermore,microstructural,evolution,approaching,solidus,was,discussed,clarify,deformation,mechanism
AB值：
0.528943
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