对两种不同锻造变形量的7050铝合金的组织和性能进行研究,分别考察组织均匀性、再结晶分数、粗大第二相比例和拉伸性能、断裂韧性等,分析锻造变形量对7050铝合金组织和性能的影响.结果表明,锻造变形量70％样品的再结晶分数(＜10％)和粗大第二相比例均小于变形量50％的样品,组织均匀性也更好;并且变形量70％样品的强度高出变形量50％样品约30 MPa,延伸率和断裂韧性也明显优于变形量50％的样品.因此,较大的变形量有利于获得均匀的组织和优异的综合性能.
参考文献
| [1] | 宋仁国.高强度铝合金的研究现状及发展趋势[J].材料导报,2000(01):20-21,34. |
| [2] | Heinz A;Haszler A;Keidel C .Recent development in aluminium alloys for aerospace applications[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2000,280:102. |
| [3] | 刘昌斌,夏长清,戴晓元.高强高韧铝合金的研究现状及发展趋势[J].矿冶工程,2003(05):74-78,82. |
| [4] | 刘兵,彭超群,王日初,王小锋,李婷婷.大飞机用铝合金的研究现状及展望[J].中国有色金属学报,2010(09):1705-1715. |
| [5] | 周坚,潘清林,张志野,陈琴.7B50铝合金热变形组织演变[J].热加工工艺,2012(02):20-23,132. |
| [6] | Hu H E;Zhen L;Yang L et al.Deformation behavior and microstructure evolution of 7050 aluminum alloy during high temperature deformation[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2008,488:64. |
| [7] | Deng, Y.;Yin, Z.;Huang, J. .Hot deformation behavior and microstructural evolution of homogenized 7050 aluminum alloy during compression at elevated temperature[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011(3):1780-1786. |
| [8] | Jin N P;Zhang H;Han Y et al.Hot deformation behavior of 7150 aluminum alloy during compression at elevated temperature[J].Materials Characterization,2009,60:530. |
| [9] | Luo, J.;Li, M.Q.;Wu, B..The correlation between flow behavior and microstructural evolution of 7050 aluminum alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011:559-564. |
| [10] | 张飞,陈华,付欣,易幼平.热变形参数对7050铝合金微观组织的影响[J].铝加工,2008(04):25-28. |
| [11] | 刘鹏辉,郭鸿镇,王涛,赵张龙,高艳华,姚泽坤.等温锻造温度对7050铝合金组织与性能的影响[J].热加工工艺,2009(01):107-109. |
| [12] | 梁信,陈康华,陈学海,陈送义,彭国胜.等温自由锻温度对7085铝合金组织与性能的影响[J].中南大学学报（自然科学版）,2012(03):900-905. |
| [13] | 梁信,陈康华,陈学海,陈送义,彭国胜.等温锻造速率对7085铝合金组织与性能的影响[J].粉末冶金材料科学与工程,2011(02):290-295. |
| [14] | Chen S Y;Chen K H;Dong P X et al.Effect of recrystallization and heat treatment on strength and SCC of an Al-Zn-Mg-Cu alloy[J].Journal of Alloys and Compounds,2013,581:705. |
| [15] | Dumont D.;Deschamps A.;Brechet Y. .On the relationship between microstructure, strength and toughness in AA7050 aluminum alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):326-336. |
| [16] | Deshpande N U;Gokhale A M;Denzer D K et al.Relationship between fracture toughness,fracture path,and microstructure of 7050 aluminum alloy:Part Ⅰ.Quantitative characterization[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1998,29(4):1191. |
| [17] | Jong D H F .Thickness direction inhomogeneity of mechanical properties and fracture toughness as observed in aluminium 7075-T651 plate material[J].Engineering Fracture Mechanics,1980,13:175. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%