典型文献
Microstructures,Thermal and Mechanical Properties of Pure Tungsten—A Comparison Between Selective Laser Melting and Hot Rolling
文献摘要：
A comparative study on the influence of different manufacturing methods(selective laser melting and hot rolling)on the microstructure,mechanical and thermal behaviours of tungsten(W)was presented for the first time.The results indicated that the selective laser melting(SLM)W exhibited a finer grain sizes,a lower strength ductility,hardness and thermal conductivity compared to hot-rolled W.The main reason for this result was that the laser underwent rapid heating and cooling when it was used to melt W powder with high energy density,resulting in large internal stress in the sample after manufacturing.Subsequently,the internal stress was released,leading to the generation of micro-cracks at the grain boundaries,thereby affecting the performance of SLM W samples.In addition,the higher fraction of high-angle grain boundaries(HAGBs)of SLM W was found to be the key factor for intrinsic brittleness.Because the HAGBs are the preferred crack paths,which could promote crack propagation and decrease fracture energy.
文献关键词：
中图分类号：
作者姓名：
Chong Wang;Daobing Chen;Yan Zhou;Zhuoming Xie;Qianfeng Fang;Shifeng Wen;Chunze Yan
作者机构：
State Key Laboratory of Material Processing and Die&Mold Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Faculty of Engineering,China University of Geosciences,Wuhan 430074,China;Key Laboratory of Materials Physics,Institute of Solid State Physics,Chinese Academy of Sciences,Hefei 230031,China
文献出处：
引用格式：
[1]Chong Wang;Daobing Chen;Yan Zhou;Zhuoming Xie;Qianfeng Fang;Shifeng Wen;Chunze Yan-.Microstructures,Thermal and Mechanical Properties of Pure Tungsten—A Comparison Between Selective Laser Melting and Hot Rolling)[J].中国机械工程学报,2022(03):219-226
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B类：
Microstructures,Thermal,Mechanical,Properties,Pure,Tungsten,Comparison,Between,Selective,Laser,Melting,Hot,Rolling,comparative,study,influence,different,manufacturing,methods,selective,laser,melting,hot,rolling,microstructure,mechanical,thermal,behaviours,tungsten,was,presented,first,results,indicated,that,SLM,exhibited,finer,grain,sizes,lower,strength,ductility,hardness,conductivity,compared,rolled,main,reason,this,underwent,rapid,heating,cooling,when,used,powder,energy,density,resulting,large,internal,stress,after,Subsequently,released,leading,generation,cracks,boundaries,thereby,affecting,performance,samples,In,addition,higher,fraction,angle,HAGBs,found,key,intrinsic,brittleness,Because,preferred,paths,which,could,promote,propagation,decrease,fracture
AB值：
0.653342
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