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6201铝合金管材半固态连续扩展成形实验研究 被引量:1

Experimental Study on Continuous Semi-Solid Expansion Forming Process of 6201 Al-Alloy Tubes
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摘要 采用半固态连续扩展成形技术,成功地试制了扩展比为3 52的6201铝合金管材·对其微观组织和力学性能的变化及机理进行了研究·实验表明:出模温度超过510℃时,其组织发生完全再结晶;T6,TA状态半固态连续扩展成形管材的强度随着时效时间的增加呈明显的上升趋势,而延伸率则呈明显的下降趋势·扩展成形工艺的关键在于确保成形终了温度高于520℃,T6状态的管材抗拉强度为299MPa,延伸率为9 4%;TA状态的管材抗拉强度为258MPa,延伸率为12 4%;力学性能演化机理分析表明,采用合适的连续扩展成形工艺与时效处理工艺能保证获得拉伸强度和延伸率匹配最佳的6201母线管材· The 6201 Al-alloy tubes were produced successfully through semi-solid continuous expansion forming process with an extrusion ratio 352. The microstructure, mechanism and change of mechanical properties were studied under T6 and TA heat-treatment processes. The results indicated that the microstructure of tubes was fully recrystallized when the demoulding temperature exceeds 520 ℃, and the tube strength after semi-solid continuous expansion forming process and under T6 and TA heat-treatments increases obviously with the increasing of aging time, but the elongation tends to decrease obviously. The key points to the expansion forming process are to make sure that the demoulding temperature should be over 520 ℃, and the tensile strength of tube up to 299 MPa in T6 state with the elongation 9.4%, as well as 258 MPa with 12.4% in TA state. An evolution mechanism analysis of mechanical properties showed that the conduit tubes made from 6201 Al-alloy for bus bars with an optimum combination of tensile strength and elongation can be obtained by choosing proper continuous expansion forming process and aging treatment.
出处 《东北大学学报(自然科学版)》 EI CAS CSCD 北大核心 2004年第8期778-781,共4页 Journal of Northeastern University(Natural Science)
基金 国家自然科学基金与上海宝钢集团联合资助项目(50274020)
关键词 半固态 连续扩展成形 6201铝合金 工艺 性能 semi-solid state continuous expansion forming 6201 Al-alloy technological process property
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参考文献11

  • 1Kim Y H, Cho J R, Jeong H S, et al. A study on optimal for CONFORM process [J]. Journal of Material Processing Technology, 1998,80-81:671-675.
  • 2Cho J R, Jeong H S. Parametric investigation on the curing phenomenon in CONFORM process by three-dimensional finite element analysis [J]. Journal Material Processing Technology, 2001,110:53-60.
  • 3Rafiq A, Siddiqui, Hussein A, et al. Influence of aging parameters on the mechanical properties of 6063 aluminum alloy[J]. Journal of Materials Processing Technology, 2000,102:234-240.
  • 4Maruyama N, Uemori R, Hashimoto N, et al. Effect of silicon addition on the composition and structure of fine-scale precipitates in Al-Mg-Si alloys[J]. Script Materalia, 1997,36(1):89-93.
  • 5McQueen H J, Xia X, Cui Y. Solution and precipitation effect on hot workability 6201 alloy[J]. Materials Science and Engineering, 2001,A319-321:420-424.
  • 6Cabibbo M, Spigarelli S, Evangelista E. A TEM investiga-tion on the effect of semi-solid forming on precipitation process in an Al-Mg-Si alloy[J]. Materials Characterization, 2003,49:193-202.
  • 7王树森.管型母线在户外配电装置中的应用[J].山西电力技术,1997,17(2):38-40. 被引量:4
  • 8李守新,郭文生,张得成,杨春海,王殿军.大跨度四分裂铝管母线的制作工艺[J].东北电力技术,1998,19(11):50-53. 被引量:2
  • 9温景林,管仁国,李英龙,刘相华.半固态扩展挤压A2017合金工艺过程的模拟与实验[J].东北大学学报(自然科学版),2003,24(1):83-86. 被引量:7
  • 10王祝堂 田荣章.铝合金及其加工手册[M].长沙:中南工业大学出版社,1988.172.

二级参考文献3

共引文献36

同被引文献14

  • 1Weimin MAO, Chenglin CUT, Aimin ZHAO, Jilian YANG and Xueyou ZHONG Foundry Institute, University of Science and Technology Beijing, Beijing 100083, China .Effect of Pouring Process on the Microstructures of Semi-Solid AlSi_7Mg Alloy[J].Journal of Materials Science & Technology,2001,17(6):615-619. 被引量:17
  • 2管仁国,李英龙,王顺成,刘相华,温景林.半固态扩展挤压A2017合金过程中金属流动的有限元分析[J].中国有色金属学报,2004,14(9):1539-1544. 被引量:8
  • 3FLEMINGS M C. Behavior of metal alloys in the semisolid state[J]. Metall Trans, 1991, 22A: 957-781.
  • 4KIRKWOOD D H. Semisolid metal processing[J]. International Materials Reviews, 1994, 39: 173-178.
  • 5HAGA T. Simple rheocasting processes[J]. Journal of Materials Processing Technology, 2002, 130/131: 594-598.
  • 6GUAN Ren-guo, WEN Jing-lin, LIU Xiang-hua. FEM analysis of aluminum AA2017 alloy thermal/fluid multiple fields during a single-roll stirring process[J]. Mater Sci Tech, 2003, 19(4):503-506.
  • 7MARUYAMA N, UEMORI R, HASHIMOTO N. Effect of silicon addition on the composition and structure of fine-scale precipitates in AI-Mg-Si alloys[J]. Script Mater, 1997, 36(1): 89.
  • 8GUAN Ren-guo, WANG Shtm-cheng, WEN Jing-lin. A continuous semisolid extending-extrusion process for producing AA2017 aluminum alloy flat bar[J]. Mater Sci Tech., 2006, 22(6) 706-712.
  • 9EMBURY J D. Strengthening mechanisms in Al alloys-an overview of natural limits and engineering possibilities[J]. Materials Science Forum, 1996, 217/222: 57.
  • 10SIDDIQUI R A, ABDULLAH H A, AL-BELUSHI K R. Influence of aging parameters on the mechanical properties of 6063 aluminum alloy[J]. Journal of Matedals Processing Technology, 2000, 102: 234-240.

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