通过固溶前退火温度来调控2519A铝合金棒材固溶时的再结晶状态,以获得不同织构组态。采用X射线衍射分析研究了2519A铝合金棒材经150、200、300和350℃退火1 h后再经535℃×2 h固溶与直接经535℃×2 h固溶4种热处理工艺对合金织构和微观组织的影响。结果表明：2519A铝合金棒材直接经535℃×2 h固溶,挤压棒材强的〈13〉织构转变为〈110〉再结晶织构,而经上述4种温度退火和535℃×2 h固溶,织构分别演变为〈113〉,〈605〉,〈5110〉和〈7 214〉织构。退火后不固溶试样〈111〉织构和硬度值都保持不变。样品固溶发生再结晶的〈110〉织构与挤压〈13〉织构间可用40°〈111〉长大理论解释。
Annealing treatment of different temperatures before solution treatment were employed to control the recrystallization of the extruded 2519A aluminum alloy bar with 〈13〉texture before solution,in order to obtain different configurations of texture.The evolution of texture and microstructure of the samples annealed at 150,200,300 and 350 ℃ for 1 h and then solutioned at 535 ℃ for 2 h,compared with those solutioned at 535 ℃ for 2 h only,were investigated by X-ray diffraction and optical microscopy.The results indicate that the 〈13〉 texture in the 2519A aluminum alloy bar changes to the 〈110〉recrystallization texture after solution treatment at 535 ℃ for 2 h,while after annealing at 150,200,300 and 350 ℃ and then the solution treatment,it changes into 〈113〉,〈605〉,〈5 110〉 and 〈7 214〉texture,repectively.Besides,the 〈13〉texture and microhardness remains stable during the annealing before solution treatment.The relationship between the extruding 〈13〉texture and recrystallization〈110〉 texture after soulution of the samples can be explained by the 40°〈111〉growth theory.
参考文献
| [1] | Yu C U;Sun P L;Kao P W et al.Evolution of microstructure during annealing of a severly deformed aluminum[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2004,366:310-317. |
| [2] | Ahlborn H;Hornbogen E;Koster U.Recrystallization mechanism and annealing texture in aluminum-copper alloy[J].Journal of Materials Science,1969(04):944-950. |
| [3] | H. -J. Shin;H. -T. Jeong;D. N. Lee .Deformation and annealing textures of silver wire[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):244-253. |
| [4] | 张德芬,左良.预回复退火对3104铝合金再结晶织构和显微组织的影响[J].石油化工高等学校学报,2004(03):62-65. |
| [5] | 张新明,张少睿,周卓平,舒永春.钽丝的拉拔及退火织构[J].中国有色金属学报,1999(04):774-778. |
| [6] | 毛卫民.金属材料的晶体学织构与各向异性[M].北京:科学出版社,2002:180-182. |
| [7] | 张信钰.金属和合金的织构[M].北京:科学出版社,1976:1-9. |
| [8] | 王赛玉,石其年.Al-Li合金挤压织构及其对性能的影响[J].吉林化工学院学报,2005(01):53-55. |
| [9] | 石其年.二次挤压对Al-Li合金力学性能的影响[J].现代机械,2002(04):82-84. |
| [10] | 杨觉先.金属塑性变形物理基础[M].北京:冶金工业出版社,1987:183-186. |
| [11] | 宝磊 .Zr元素对Al-Cu-Mg-Mn合金织构影响的研究[D].沈阳航空工业学院,2007. |
| [12] | Humphreys F J;Hatherly M.Reerystallization and Related Annealing Phenomena-Second Edition[M].Oxford:Elsevier,2004 |
| [13] | Doherty R D;Hughes D A;Humphreys F J et al.Curreent issues in reerystallization:a review[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1997,238:219-274. |
| [14] | 毛卫民;张新明.晶体材料织构定量分析[M].北京:冶金工业出版社,1995:95-145. |
| [15] | Dong Nyung Lee .Strain energy release maximization model for evolution of recrystallization textures[J].International Journal of Mechanical Sciences,2000(8):1645-1678. |
| [16] | Lee Dong Nyung .The evolution of recrystallization textures from deformation textures[J].Scrlpta Metallurgica et Materialia,1995,32(10):1689-1694. |
| [17] | Stuwe HP.;Padilha AF.;Siciliano F. .Competition between recovery and recrystallization[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):361-367. |
| [18] | 郑子樵.材料科学基础[M].长沙:中南大学出版社,2005:365-371. |
| [19] | 刘诗安,袁东,严琦琦,张辉.Al-Mg-Si-Cu合金的热处理工艺[J].金属热处理,2005(11):55-57. |
| [20] | 邹永恒,陶虹,徐国明,李永佳,朱浩峰.6082铝合金热处理工艺参数的研究[J].金属热处理,2007(10):71-76. |
| [21] | 李慧中,梁霄鹏,陈明安,张新明.冷轧变形量对2519铝合金组织与力学性能的影响[J].材料热处理学报,2008(02):86-89. |
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