针对表面机械研磨处理导致的纳米化过程,分析了晶体结构与层错能(SFE)对纳米/超细晶粒组织塑性变形及晶粒细化机制的影响.在低层错能、热力学亚稳态的纳米/超细晶粒组织中,存在应变诱导的马氏体相变、孪生与位错分解等塑性变形方式,拉伸变形时发生相变诱发塑性(TRIP)效应,指出TRIP效应可以是提高拉伸伸长率的机制.
参考文献
| [1] | Lu K;Lu J .Surface nanocrystallization (SNC) of metallic materials-presentation of the concept behind a new approach[J].Journal of Materials Science and Technology,1999,15(02):193-197. |
| [2] | Valiev RZ.;Alexandrov IV.;Islamgaliev RK. .Bulk nanostructured materials from severe plastic deformation [Review][J].Progress in materials science,2000(2):103-189. |
| [3] | Wang J;Iwahashi Y;Horita Z;Furukawa M、Nemoto M、Valiev R Z、Langdon T G .An investigation of microstructural stability in Al-Mg alloy with submicrometer grain size[J].Acta Materialia,1996,44(07):2973-2982. |
| [4] | Lu K;Lu J .Nanostructured surface layer on metallic materials induced by surface mechanical attrition treatment[J].Materials Science and Engineering A,2004,375-377:38-42. |
| [5] | Koch C C .Optimization of strength and ductility in nanocrystalline and ultrafine grained metals[J].Scripta Materialia,2003,49(07):657-662. |
| [6] | Ma E .Instabilities and ductility of nanocrystalline and ultrafine-grained metals[J].Scripta Materialia,2003,49(07):663-668. |
| [7] | Lu L;Sui M L;Lu K .Superplastic extensibility of nanocrystalline copper at room temperature[J].Science,2000,287:1463-1466. |
| [8] | Wang Y;Chen M;Zhou F;Ma E .High tensile ductility in a nanostructured metal.[J].Nature,2002(6910):912-915. |
| [9] | Valiev R Z;Alexandrov I V;Zhu Y T;Lowe T C .Paradox of strength and ductility in metals processed by severe plastic deformation[J].Journal of Materials Research,2002,17(01):5-8. |
| [10] | X.Wu;N. Tao;Y. Hong .Microstructure and evolution of mechanically-induced ultrafine grain in surface layer of AL-alloy subjected to USSP[J].Acta materialia,2002(8):2075-2084. |
| [11] | WEI Yueguang,ZHU Chen,WU Xiaolei.Micro-scale mechanics of the surface-nanocrystalline Al-alloy material[J].中国科学G辑(英文版),2004(01):86-100. |
| [12] | Wu X;Hong Y;Lu J;Lu K .Fabrication and nanostructured surface layer of Al alloy by surface vibrational mechanical attrition[J].Materials Research Society Symposium Proceedings,2002,697:329-334. |
| [13] | N. R. Tao;Z. B. Wang;W. P. Tong;M. L. Sui;J. Lu;K. Lu .An investigation of surface nanocrystallization mechanism in Fe induced by surface mechanical attrition treatment[J].Acta materialia,2002(18):4603-4616. |
| [14] | 武晓雷 .技术报告[R].,2005. |
| [15] | Hughes D A;Hansen N .Graded nanostructures produced by sliding and exhibiting universal behaviour[J].Physical Review Letters,2001,87:135503. |
| [16] | Wu X;Tao N;Hong Y;Liu G;Xu B;Lu J;Lu K .Strain-induced grain refinement of cobalt during surface mechanical attrition treatment[J].Acta materialia,2005(3):681-691. |
| [17] | Wu X;Tao N;Hong Y;Lu J、Lu K .Gamma-epsilon martensite transformation and twinning deformation in fcc cobalt during surface mechanical attrition treatment[J].Scripta Materialia,2004,52(07):547-551. |
| [18] | N.R. Tao;X.L. Wu;M.L. Sui;J. Lu;K. Lu .Grain refinement at the nanoscale via mechanical twinning and dislocation interaction in a nickel-based alloy[J].Journal of Materials Research,2004(6):1623-1629. |
| [19] | H. W. Zhang;Z. K. Hei;G. Liu;J. Lu;K. Lu .Formation of nanostructured surface layer on AISI 304 stainless steel by means of surface mechanical attrition treatment[J].Acta materialia,2003(7):1871-1881. |
| [20] | Zhu K Y;Vassel A;Brisset F;Lu K、Lu J .Nanostructure formation mechanism of α-titanium using SMAT[J].Acta Materialia,2004,52:4101-4110. |
| [21] | SUN Cai-yun,XIE Ji-jia,WU Xiao-lei,HONG You-shi,LIU Gang,LU Jian,LU Ke.In Situ Synthesis of Nanocrystalline Intermetallic Compound Layer during Surface Mechanical Attrition Treatment of Zirconium[J].材料热处理学报,2004(05):1242-1246. |
| [22] | R. Z. Valiev;A. V. Sergueeva;A. K. Mukherjee .The effect of annealing on tensile deformation behavior of nanostructured SPD titanium[J].Scripta materialia,2003(7):669-674. |
| [23] | Lu L;Shen Y F;Chen X H;Qian L H、Lu K .Ultrahigh strength and high electrical conductivity in copper[J].Science,2004,304:422-426. |
| [24] | Champion Y.;Langlois C.;Guerin-Mailly S.;Langlois P.;Bonnentien JL. Hytch MJ. .Near-perfect elastoplasticity in pure nanocrystalline copper[J].Science,2003(5617):310-311. |
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