典型文献
Precipitation and coarsening kinetics of H-phase in NiTiHf high temperature shape memory alloy
文献摘要：
Precipitate hardening is the most easiest and effective way to enhance strain recovery properties in NiTiHf high-temperature shape memory alloys.This paper discusses the precipitation,coarsening and age hardening of H-phase precipitates in Nis0Ti30Hf20 alloy during isothermal aging at temperatures be-tween 450℃and 650℃for time to 75 h.The H-phase mean size and volume fraction were deter-mined using transmission electron microscopy.Precipitation kinetics was analyzed using the Johnson-Mehl-Avrami-Kolmogorov equation and an Arrhenius type law.From these analyses,a Time-Temperature-Transformation diagram was constructed.The evolution of H-phase size suggests classical matrix diffu-sion limited Lifshitz-Slyozov-Wagner coarsening for all considered temperatures.The coarsening rate con-stants of H-phase precipitation have been determined using a modified coarsening rate equation for non-dilute solutions.Critical size of H-phase precipitates for breaking down the precipitate/matrix interface coherency was estimated through a combination of age hardening and precipitate size evolution data.Moreover,time-temperature-hardness diagram was constructed from the precipitation and coarsening ki-netics and age hardening of H-phase precipitates in Ni50Ti30Hf20 alloy.
文献关键词：
中图分类号：
作者姓名：
A.Shuitcev;Y.Ren;B.Sun;G.V.Markova;L.Li;Y.X.Tong;Y.F.Zheng
作者机构：
Institute of Materials Processing and Intelligent Manufacturing,College of Materials Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China;Center of Testing and Analysis,College of Materials Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China;Physics of Metal and Material Science Department,Tula State University,Tula 300012,Russian Federation
文献出处：
引用格式：
[1]A.Shuitcev;Y.Ren;B.Sun;G.V.Markova;L.Li;Y.X.Tong;Y.F.Zheng-.Precipitation and coarsening kinetics of H-phase in NiTiHf high temperature shape memory alloy)[J].材料科学技术（英文版）,2022(19):90-101
A类：
NiTiHf,Precipitate,easiest,Nis0Ti30Hf20,netics,Ni50Ti30Hf20
B类：
Precipitation,coarsening,kinetics,phase,high,shape,memory,hardening,most,effective,way,enhance,strain,recovery,properties,alloys,This,paper,discusses,precipitation,age,precipitates,during,isothermal,aging,temperatures,tween,mean,size,volume,fraction,were,using,transmission,electron,microscopy,was,analyzed,Johnson,Mehl,Avrami,Kolmogorov,equation,Arrhenius,type,law,From,these,analyses,Time,Temperature,Transformation,diagram,constructed,evolution,suggests,classical,matrix,diffu,limited,Lifshitz,Slyozov,Wagner,considered,rate,stants,have,been,determined,modified,dilute,solutions,Critical,breaking,down,interface,coherency,estimated,through,combination,data,Moreover,hardness,from
AB值：
0.485161
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