Transactions of Materials and Heat Treatment

Title：Research status and future expectation on equal channel angular pressing

Authors： LIU Rui SUN Kang-ning BI Jian-qiang(Key Laboratory of Material Liquid State Structure & Tansmissibility Key laboratory of EngineeringCeramic of the Ministry of Education Shandong University Jinan Shandong 250061 China)

Unit：

KeyWords： bulk nanometer materials sever plastic deformation(SPD) equal channel angular pressing(ECAP)

ClassificationCode：TG376

year,vol(issue):pagenumber：2005,30(6):85-89

Abstract：

Research on bulk nanometer materials is brought to experts' attention recently.Sever Plastic Deformation(SPD) is an unique technology of producing bulk nanometer materials.Equal channel angular pressing(ECAP),one of SPD methods,provides a convenient procedure for introducing ultra-fine grain sizes into materials.ECAP is able to refine grain into 200nm~400nm,and improve mechanical properties of materials at the room temperature or at the relative low temperature.This paper is about the factors of ECAP contributions in terms of enhancing strength,fatigue limit and super-plastic property.Both the problem and application in the future are mentioned.

Funds：

山东省科技攻关项目资助(032050115)

Reference：

[1]毕见强,孙康宁,高伟,等.块体纳米材料的制备及其应用[J].金属成形工艺,2003,21(4):35 38,52.
[2]毕见强,孙康宁,王素梅,等.大塑性变形法制备块体纳米材料[J].金属成形工艺,2002,20(6):43 45.
[3]Valiev RZ,Islamgaliev R K,AlexandrovI V.Bulk nanostruc-tured materials fromsever plastic deformation[J].Progressin materials science,2000,45(2):103 189.
[4]Huang J Y,Zhu Y T,Jiang,H et al.Microstructures anddislocation configurations in nanostuctured Cu processed by re-petitive corrugation and straightening[J].Acta mater,2001,49:1497 1505.
[5]Matsuki K,Aida1 T,Takeuchi T,et al.Microstructural char-acteristics and superplastic-like behavior in aluminum powderalloy consolidated by equal-channel angular pressing[J].Ac-ta mater,2000,48:2625 2632.
[6]Yamashita A,Horita Z,Langdon T G.I mproving the me-chanical properties of magnesium and a magnesium alloythrough severe plastic deformation[J].Materials Science andEngineering,2001,A300:142 147.
[7]Neishi K,Horita Z,Langdon T G.Achieving Superplasticityin a Cu 40%Zn alloy through sever plastic deformation[J].Scripta Materiala,2001,45:965 970.
[8]Neishi K,Horita Z,Langdon T G.Grain refinement of purenickel using equal-channel angular pressing[J].MaterialsScience and Engineering,2002,A235:54 58.
[9]Ki mI,Ki mJ,Shin D H,et al.Effects of equal channel angularpressing temperature on deformation structures of pure Ti[J].Materials Science and Engineering,2003,A342:302 310.
[10]Ko Y G,Jung WS,Shin D H,et al.Effects of temperature andinitial microstructure on the equal channel angular pressing of Ti6Al 4Valloy[J].Scripta Materialia,2003,48:197 202.
[11]Shin D H,Ki m WJ,Choo W Y.Grain refinement of a com-mercial 0.15%C steel by equal-channel angular pressing[J].Scripta Materialia,1999,41(3):259 262.
[12]Chung C S,Ki mJ K,Ki mH K,Ki m WJ.I mprovement ofhigh-cycle fatigue life in a 6061 Al alloy produced by equalchannel angular pressing[J].Materials Science and Engineer-ing,2002,A337:39 44.
[13]Komura S,Furukawa M,Horita Z,Nemoto M,Langdon TG.Opti mizing the procedure of equal-channel angular press-ing for maxi mum superplasticity[J].Materials Science andEngineering,2001,A297:111 118.
[14]Zhu Y T,Lowe T C.Observations and issues on mechanismsof grain refinement during ECAP process[J].Materials Sci-ence and Engineering,200,A291:46 53.
[15]Nakashi ma K,Horita Z,Nemoto M,et al.Influence of chan-nel angular on the development of ultrafine grains in equal-channel angular pressing[J].Acta mater,1998,46(5):1589 1599.
[16]Valiev R Z,Komikov A V,Mulyokov R R.Structure andproperties of ultrafine-grained materials produced by severeplastic deformation[J].Material and Engineering,1993,Al 68:141 148.
[17]Yamashita A,Yamaguchi D,Horita Z,et al.Influence ofpressing temperature on microstructural development in equal-channel angular pressing[J].Materials Science and Engineer-ing,2000,A287:100 106.
[18]Berbon P B,Furukawa M,Horita Z,et al.Influence of press-ing speed on microstructural development in equal-channel an-gular pressing[J].Metall Mater Trans,1999,30A(8):1989 1997.
[19]Skripnyuk V M,Rabkin E,Estrin Y,et al.The effect of ballmilling and equal channel angular pressing on the hydrogen ab-sorption/desorption properties of Mg 4.95 wt%Zn 0.71 wt%Zr(ZK60)alloy[J].Acta Materialia,2004,52:405 414.
[20]Chung MK,Choi YS,Ki mJ G,et al.Effect of the number ofECAP pass ti me on the electrochemical properties of 1050 Alalloys[J].Materials Science and Engineering,2004,A336:282 291.

Service：

【This site has not yet opened Download Service】【Add Favorite】