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等径角轧制AM60镁合金板材的显微组织与力学性能 被引量：3

Microstructure and Mechanical Properties of AM60 Magnesium Alloy Sheet Processed by Equal Channel Angular Rolling
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摘要 采用等径角轧制工艺制备了AM60镁合金板材,并对轧制前后板材的显微组织与力学性能进行了对比。结果表明:经过等径角轧制后,板材晶粒取向由轧制前的(0002)基面取向演化为非基面取向,晶粒细化并有大量细密孪晶出现;板材强度明显提高,抗拉强度由轧制前的222 MPa增大到372 MPa,屈服强度由156 MPa增大到260 MPa,断后伸长率略有增加。 AM60 magnesium alloy sheets were prepared by equal channel angular rolling(ECAR),the microstructure and mechanical properties were examined.It was found that the orientation of the sheet processed by ECAR was changed and the crystal orientation evolved from(0002) basal plane orientation to non-basal plane.Compared with as-received sheet,the grain size decreased and refined twins were presented.The strength of the sheets after ECAR was enhanced obviously,the ultimate tensile strength increased from 222 to 37...
作者 仇治勤 陈振华 夏伟军 陈鼎
机构地区 湖南大学材料科学与工程学院
出处 《机械工程材料》 CAS CSCD 北大核心 2008年第5期48-51,共4页 Materials For Mechanical Engineering
基金 国家自然科学基金资助项目(50674043)
关键词 AM60镁合金板材 等径角轧制 显微组织 力学性能 AM60 magnesium alloy sheet ECAR microstructure mechanical property
分类号 TG335.19 [金属学及工艺—金属压力加工]
  • 相关文献

参考文献12

  • 1[1]Iwanaga K,Tashiro H,Okamoto H,et al.Improvement of formability from room temperature to warm temperature in AZ-31 magnesium alloy[J].Journal of Materials Processing Technology,2004,155/156:1313-1316.
  • 2[2]Kalidindi S R Modeling anistroptropic strain hardeningand deformation textures in low stacking fault energy material[J].International Journal of Plastisity,2001,17:837-860.
  • 3[3]Poss R.Sheet metal production of magnesium[J].Materials Science Forum,2003,419/422:327-336.
  • 4[4]Perez-Prado M T,Valle J A,Contreras J M,et al.Microstructural evolution during large strain hot rolling of an AM60 Mg alloy[J].Scripta Materialia,2004,50:661-665.
  • 5[5]Valle J A,Prado M T,Ruano O A.Texture evolution during large strain hot rolling of the AM61 Mg alloy[J].Mater Sci Eng A,2003,A355:68-78.
  • 6[6]Mabuchi M,Iwasaki H,Yanase K,et al.Low temperature superplasticity in an AZ91 Magnesium alloy processed by ECAE[J].Scripts.Materialia,1997,36(6):681-686.
  • 7[7]Kim W J,Hong S I,Kim Y S,et al.Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing[J].Acta Materialia,2003,51:3293-3307.
  • 8[8]Horita Z,Furukawa M,Nemoto M,et al.Superplastic forming at high strain rates after severe plastic deformation[J].Acta Mater,2000,48 (14):3633-3640.
  • 9[9]Yoshida Y,Cisar L,Kamado S,et al.Effect of microstructure factors on tensile properties of an ECAE-processed AZ31 magnesium alloy[J].Mater Trans,2003,44 (4):468-475.
  • 10[10]Koike J.New deformation mechanisims in fine grain Mg alloy[J].Materials Sciences Forum,2003,419/422:189-194.

二级参考文献20

  • 1Iwanaga K, Tashiro H, Okamoto H, et al. Improvement of formability from room temperature to warm temperature in AZ-31 magnesium alloy[J]. Journal of Materials Processing Technology, 2004, 155- 156:1313-1316.
  • 2Kalidindi S R. Modeling anisoptropic strain hardening and deformation textures in low stacking fault energy materials[J]. International Journal of Plasticity, 2001,17:837-860.
  • 3Poss R. Sheet metal production of magnesium [J].Materials Science Forum, 2003, 419 - 422: 327 - 336.
  • 4Perez-Prado M T, Valle J A, Contreras J M, et al.Microstructural evolution during large strain hot rolling of an AM60 Mg alloy [J]. Scripta Materialia,2004, 50:661-665.
  • 5Valle J A, Prado M T, Ruano O A. Texture evolution during large-strain hot rolling of the AZ61 Mg alloy[J]. Mater Sci Eng A, 2003, A355:68 -78.
  • 6Watanabe H, Mukai T, Ishikawa K. Differential speed rolling of an AZ31 magnesium alloy and the resulting mechanical properties[J]. Journal of Materials Science, 2004, 39: 1477-1480.
  • 7Mabuchi M, Iwasaki H, Yanase K, et al. Low temperature superplasticity in an AZ91 Magnesium alloy processed by ECAE[J]. Scripta Materialia, 1997, 36(6): 681 - 686.
  • 8Kim W J, Hong S I, Kim Y S, et al. Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing[J]. Acta Materialia, 2003, 51:3293-3307.
  • 9Horita Z, Furukawa M, Nemoto M, et al. Superplastic forming at high strain rates after severe plastic deformation[J]. Acta Mater, 2000, 48(14):3633- 3640.
  • 10Yoshida Y, Cisar L, Kamado S, et al. Effect of microstructural factors on tensile properties of an ECAE-processed AZ31 magnesium alloy[J]. Mater Trans, 2003, 44(4):468-475.

共引文献33

同被引文献55

引证文献3

二级引证文献40

机械工程材料
2008年 第5期

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