1060工业纯铝累积叠轧后的力学性能
Mechanical Properties of ARB 1060 Industry Pure Aluminum
摘 要
采用累积叠轧焊方法在室温下加工1060工业纯铝,分析了叠轧变形前后其力学性能的变化.结果表明:随着累积叠轧道次的增加,材料的抗拉强度和显微硬度都得到提高;拉伸断口处的韧窝逐渐变小变浅,但仍为韧性断裂;轧制1道次后试样的伸长率较母材的伸长率急剧降低,随着轧制的进行伸长率变化平稳;累积叠轧5道次材料的综合力学性能较好,抗拉强度提高到210 MPa,是母材的2.41倍,显微硬度78.5 HV,是母材的2.2倍,伸长率9.3%,仅是母材的0.21倍.
塑性变形
力学性能
纯铝
accumulative roll bonding(ARB)
plastic deformation
mechanical property
pare aluminum
Abstract
The mechanical performance change of 1060 industry pure aluminum which had been processed under room temperature condition using accumulative rollbonding(ARB) was analyzed.The experimental results indicate that the material tensile strength and microhardness were enhanced with rolling pass increase.The dimple of the fracture gradually became smaller and shallower but it was still gliding fracture.The elongation percentage dropped remarkably at the first pass,and then its changes was smooth with the rolling pass increase.After five cycles,the material obtained fairly good mechanical properties.Compared to the properties of the parent metal,the tensile strength enhanced to 210 MPa approximately 2.41 times,the microhardness enhanced to 78.5 HV about 2.2 times and the elongation percentage was 9.3% only 0.21 times.
中图分类号 TG339
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收稿日期 2007/4/28
修改稿日期 2007/9/11
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备注吕爽(1981-),男,黑龙江佳木斯人,硕士研究生.
引用该论文: Lv Shuang,WANG Kuai-she,ZHANG Bing,YIN Juan. Mechanical Properties of ARB 1060 Industry Pure Aluminum[J]. Materials for mechancial engineering, 2008, 32(3): 75～77
吕爽,王快社,张兵,尹娟. 1060工业纯铝累积叠轧后的力学性能[J]. 机械工程材料, 2008, 32(3): 75～77
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参考文献
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【2】Reis Ana,Carmen C,Kestens Leo.Cross-sectional texture gradients in interstitial free steels processed by accumulated roll bonding[J].Solid State Phenomena,2005,105:233-238.
【3】Lee Seong-Hee,Utsunomiya Hiroshi,Sakai Tetsuo.Microstructures and mechanical properties of ultra low carbon interstitial free steel severely deformed by a multi-stack accumulative roll bonding process[J].Materials Transactions,2004,45(7):2177-2181.
【4】Kaneko S,Fukuda K,Utsunomiya H,et al.Ultra grain refinement of aluminium 1100 by ARB with cross rolling[J].Materials Science Forum,2003,432(3):2649-2654.
【5】Hoppel Heinz Werner,May Johannes,Goken Mathias.Enhanced strength and ductility in ultrafine-grained aluminium produced by accumulative roll bonding[J].Advanced Engineering Materials,2004,6(4):219-222.
【6】吴承玲,史庆南,王军丽,等.大变形异步叠轧制备超细晶铜材叠轧过程组织演变研究[J].新技术新工艺,2006(4):96-99.
【7】王耀奇,候红亮,许荣昌,等.累积叠轧焊对L2纯铝力学性能影响的研究[J].锻压技术,2006(1):86-89.
【8】方建敏,张杏耀,单爱党,等.累积叠轧焊不锈钢的组织和性能[J].机械工程材料,2006,29(8):16-18.
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【10】余永宁.金属学原理[M].北京:冶金工业出版社,2000:464-69.
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