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典型文献
Dynamics evolution of γ' precipitates size and composition interface between γ/γ' phases in Ni-Al alloy at different aging temperatures
文献摘要:
The precipitation dynamics of γ'(L12-Ni3Al)phase and composition interfacial width between γ(fcc Ni)and γ'phase were investigated using the phase field sim-ulation linking with CALPHAD method.The coarsening rate and particle size distribution(PSD)of γ'phase,the temporal composition interfacial width of γ/γ'in Ni-17 at%Al alloy aged at 923,973 and 1023 K were clari-fied.As the aging temperature increases,the morphology of γ'phase changes from the interconnected rectangle shape to the separated cuboidal shape.The average particle radius(<r>)of γ'phase at coarsening stage follows<r>∝ tn with the exponents n=0.21,0.23 and 0.26,respectively.The peak values of simulated PSDs at 923 K are less than the value calculated by the Lifshitz-Slyozov-Wagner(LSW)model,and the width of simulated PSD increases at later stage of precipitation.The normalized radius(r/<r>)which corresponds to the peak value of PSD moves from 1.1 to 1.0 as the aging temperature increases from 923 to 1023 K,and they are smaller than that of LSW model.The composition interfacial width decreases as the aging pro-gresses and increases as the aging temperature increases.
文献关键词:
作者姓名:
Xing-Chao Wu;Yong-Sheng Li;Wei Liu;Zhi-Yuan Hou;Meng-Qiong Huang
作者机构:
School of Materials Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
引用格式:
[1]Xing-Chao Wu;Yong-Sheng Li;Wei Liu;Zhi-Yuan Hou;Meng-Qiong Huang-.Dynamics evolution of γ' precipitates size and composition interface between γ/γ' phases in Ni-Al alloy at different aging temperatures)[J].稀有金属(英文版),2022(10):3552-3559
A类:
clari,cuboidal,gresses
B类:
Dynamics,evolution,precipitates,size,composition,interface,between,phases,alloy,different,aging,temperatures,precipitation,dynamics,L12,Ni3Al,interfacial,width,fcc,were,investigated,using,field,ulation,linking,CALPHAD,method,coarsening,particle,distribution,temporal,aged,fied,increases,morphology,changes,from,interconnected,rectangle,shape,separated,average,radius,stage,follows,tn,exponents,respectively,peak,values,simulated,PSDs,are,less,than,calculated,by,Lifshitz,Slyozov,Wagner,LSW,model,later,normalized,which,corresponds,moves,they,smaller,that,decreases,pro
AB值:
0.482409
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