钢和铁基合金通过等径弯曲通道变形(ECAP)可获得超细晶组织,从而改善材料的性能.成功实现了C方式650℃时珠光体65Mn钢的等径弯曲通道变形,累积等效真应变约为5.片层状珠光体组织演变成超细的渗碳体颗粒均匀分布于铁素体基体的组织,而且铁素体基体为均匀等轴晶粒,平均晶粒尺寸约为0.3μm.
参考文献
| [1] | Akira Sato.Research Project of Structural Materials for the 21st Century (Ultra-Steels)[A].北京:冶金工业出版社,2000 |
| [2] | <国家重点基础研究发展规划>项目简介[J].材料导报,2000(02):59-63. |
| [3] | 王经涛.亚微晶材料发展概述[A].北京:化学工业出版社,1995 |
| [4] | Valiev RZ.;Alexandrov IV.;Islamgaliev RK. .Bulk nanostructured materials from severe plastic deformation [Review][J].Progress in materials science,2000(2):103-189. |
| [5] | Z.Horita;T.Fujinami .Equal-Channel Angular Pressing of Commercial Aluminum Alloys: Grain Refinement, Thermal Stability and Tensile Properties[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2000(3):691-701. |
| [6] | 张郑,王经涛,赵西成.7475铝合金ECAP的晶粒细化极限[J].中国有色金属学报,2004(05):741-745. |
| [7] | Shin D H;Kim Y S;Kim J et al.Grain Refinement Mechanism during Equal-Channel Angular Pressing of Low-Carbon Steel[J].ACTA METALLURGICA ET MATERIALIA,2001,49:1285-1292. |
| [8] | Segal VM. .MATERIALS PROCESSING BY SIMPLE SHEAR[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1995(2):157-164. |
| [9] | Furukawa M.;Horita Z.;Nemoto M.;Langdon TG.;Iwahashi Y. .The shearing characteristics associated with equal-channel angular pressing[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(2):328-332. |
| [10] | Yoshinori Iwahashi;Jingtao Wang;Zenji Horita;Minoru Nemoto;Terence G. Langdon .Principle of equal-channel angular pressing for the processing of ultra-fine grained materials[J].Scripta materialia,1996(2):143-146. |
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