采用反复模压变形法(CGP)对H62黄铜合金进行了组织细化试验,研究了合金成分、退火温度、压制道次对CGP过程的影响,以及变形道次对H62黄铜显微组织和力学性能的影响.结果表明:该黄铜经470 ℃×1 h退火有利于CGP处理;随着CGP道次增加,晶粒逐渐细化,强度和硬度提高;经CGP八道次处理后,该黄铜的显微硬度从89 HV增加到180 HV,屈服强度由130 MPa上升到450 MPa.
参考文献
| [1] | Koji Neishi;Zenji Horita;Terence G. Langdon .Achieving superplasticity in ultrafine-grained copper: influence of Zn and Zr additions[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):129-135. |
| [2] | Z. Horita;T.G. Langdon .Microstructures and microhardness of an aluminum alloy and pure copper after processing by high-pressure torsion[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(0):422-425. |
| [3] | Tsuji N.;Toyoda T.;Minamino Y.;Koizumi Y.;Yamane T.;Komatsu M. Kiritani M. .Microstructural change of ultrafine-grained aluminum during high-speed plastic deformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):108-116. |
| [4] | 赵润娴,张建,王志奇,毕大森,崔宏祥.等通道转角挤压纯铝的组织结构[J].有色金属,2002(02):8-11. |
| [5] | 李永霞,张永刚,陈昌麒.等截面通道角形挤压对高纯铝微观组织及力学性能的影响[J].航空材料学报,2001(03):33-38. |
| [6] | 张新明,邓运来,刘瑛,唐建国,周卓平.不同温度轧制多晶铝的微观组织与晶界分布[J].金属学报,2005(09):947-952. |
| [7] | Koji Neishi;Zenji Horita;Terence G et al.Achieving superplasticity in a Cu-40%Zn alloy through severe plastic deformation[J].Scripta Materialla,2001,45:965-970. |
| [8] | Xing Z P;Kang S B;Kim H W .Softening behavior of 8011 alloy produced by accumulative roll bonding process[J].Scripta Materialia,2001,45:597-604. |
| [9] | Shin DH.;Park JJ.;Kim YS.;Park KT. .Constrained groove pressing and its application to grain refinement of aluminum[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):98-103. |
| [10] | Krishnaiah A;Chakkingal Uday;Venugopal P .Applicability of the greove pressing technique for grain refinement in commercial purity copper[J].Materials Science and Engineering,2005,A410-A411:337-340. |
| [11] | 《金属材料金相图谱》编写组.金属材料金相图谱[M].南京:江苏科学技术出版社,1979 |
| [12] | Massalski T B.Binary Alloy Phase Diagrams[M].OH:ASM International,Metals Park,1986:981. |
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