典型文献
Microstructure refinement and second phase particle regulation of Mo-Y203 alloys by minor TiC additive
文献摘要：
The oxide dispersion strengthened Mo alloys(ODS-Mo)prepared by traditional ball milling and subsequent sintering technique generally possess comparatively coarse Mo grains and large oxide particles at Mo grain boundaries(GBs),which obviously suppress the cor-responding strengthening effect of oxide addition.In this work,the Y2O3 and TiC particles were simultaneously doped into Mo alloys using ball-milling and subsequent low temperature sintering.Accompanied by TiC addition,the Mo-Y2O3 grains are sharply refined from 3.12 to 1.36 pm.In particular,Y2O3 and TiC can form smaller Y-Ti-O-C quaternary phase particles(～230 nm)at Mo GBs compared to single Y2O3 particles(～420 nm),so as to these new formed Y-Ti-O-C particles can more effectively pin and hinder GBs movement.In addition to Y-Ti-O-C particles at GBs,Y2O3,TiOx,and TiCx nanoparticles(＜100 nm)also exist within Mo grains,which is significantly different from traditional ODS-Mo.The appearance of TiOx phase indicates that some active Ti within TiC can adsorb oxygen impurities of Mo matrix to form a new strengthening phase,thus strengthening and purifying Mo matrix.Furthermore,the pure Mo,Mo-Y2O3,and Mo-Y2O3-TiC alloys have similar relative densities(97.4％-98.0％).More importantly,the Mo-Y2O3-TiC alloys exhibit higher hardness(HV0.2(425±25))com-pared to Mo-Y2O3 alloys(HV0.2(370±25)).This work could provide a relevant strategy for the preparation of ultrafine Mo alloys by facile ball-milling.
文献关键词：
中图分类号：
作者姓名：
Weiqiang Hu;Fengming Gong;Shaocun Liu;Jing Tan;Songhua Chen;Hui Wang;Zongqing Ma
作者机构：
Tianjin Key Laboratory of Composite and Functional Materials,School of Materials Science and Engineering,Tianjin University,Tianjin 300072,China;CNPC Project Management Company Tianjin Design Institute,Tianjin 300072,China;College of Chemistry and Material Science,Longyan University,Longyan 364012,China;School of Mechanical Engineering,Chengdu University,Chengdu 610106,China
文献出处：
引用格式：
[1]Weiqiang Hu;Fengming Gong;Shaocun Liu;Jing Tan;Songhua Chen;Hui Wang;Zongqing Ma-.Microstructure refinement and second phase particle regulation of Mo-Y203 alloys by minor TiC additive)[J].矿物冶金与材料学报,2022(11):2012-2019
A类：
Y203
B类：
Microstructure,refinement,second,phase,regulation,alloys,by,minor,additive,oxide,dispersion,strengthened,ODS,prepared,traditional,ball,milling,subsequent,sintering,technique,generally,possess,comparatively,coarse,grains,large,boundaries,GBs,which,obviously,suppress,cor,responding,strengthening,addition,In,this,work,Y2O3,were,simultaneously,doped,into,using,low,temperature,Accompanied,sharply,refined,from,pm,particular,smaller,quaternary,compared,single,these,new,formed,effectively,pin,hinder,movement,TiOx,TiCx,nanoparticles,also,exist,within,significantly,different,appearance,indicates,that,some,active,adsorb,oxygen,impurities,matrix,thus,purifying,Furthermore,pure,have,similar,relative,densities,More,importantly,exhibit,higher,hardness,HV0,This,could,provide,relevant,strategy,preparation,ultrafine,facile
AB值：
0.482805
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