典型文献
Correlation of mechanical anisotropy with fine grain strengthening for Sm2Co17-type sintered permanent magnets
文献摘要:
The as-solution-treated Sm2Co17-type magnets exhibiting a single 1∶7H phase with different average grain sizes(D)were designed.Anisotropy of bending strength(Rbb)and compressive strength(Rmc)of the magnets were investigated.Moreover,the Rbb increases from 86 to 173 MPa with D decreasing from~52 to~18 pm for group c//h samples.The Hall-Petch correlation was employed to reveal the effect of grain size on mechanical properties of the magnets,giving deep understanding of the mechanical anisotropy characteristics.The relatively high Hall-Petch coefficient KRbb(0.79 MPa·m1/2)gives rise to the largest Rbb(173 MPa)for group c//h samples.The mechanical anisotropy of the samples is well explained based on crystal structure and grain size features(grain boundaries).Grain refinement is an effective way to enhance the mechanical properties of Sm2Co17-type sintered magnets.
文献关键词:
中图分类号:
作者姓名:
Lei Wang;Chao Wang;Qiangfeng Li;Youhao Liu;Yikun Fang;Xiaofei Yi;Wei Li
作者机构:
Division of Functional Materials Research,Central Iron and Steel Research Institute,Beijing 100081,China;State Key Laboratory of Rare Earth Permanent Magnetic Materials,Hefei 231500,China
文献出处:
引用格式:
[1]Lei Wang;Chao Wang;Qiangfeng Li;Youhao Liu;Yikun Fang;Xiaofei Yi;Wei Li-.Correlation of mechanical anisotropy with fine grain strengthening for Sm2Co17-type sintered permanent magnets)[J].稀土学报(英文版),2022(10):1584-1591
A类:
Rbb,Rmc,KRbb
B类:
Correlation,mechanical,anisotropy,grain,strengthening,Sm2Co17,type,sintered,permanent,magnets,solution,treated,exhibiting,single,7H,phase,different,average,sizes,were,designed,Anisotropy,bending,compressive,investigated,Moreover,increases,from,decreasing,pm,group,samples,Hall,Petch,correlation,was,employed,reveal,properties,giving,deep,understanding,characteristics,relatively,high,coefficient,m1,gives,rise,largest,well,explained,crystal,structure,features,boundaries,Grain,refinement,effective,way,enhance
AB值:
0.477722
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