中国激光, 2016, 43 (10): 1002003, 网络出版: 2016-10-12   

温度对激光喷丸强化2024航空铝合金表面力学性能的影响

Effect of Temperature on Surface Mechanical Property of 2024 Aluminum Alloy Treated by Laser Peening
作者单位
1 江苏大学机械工程学院, 江苏 镇江 212013
2 常州工学院机械与车辆工程学院, 江苏 常州 213022
摘要
在不同温度下对2024-T351航空铝合金进行了激光喷丸(LP),研究了温度对其表面力学性能的影响规律,并结合微观组织分析得出了激光温喷丸(WLP)对2024-T351航空铝合金的强化机理。结果表明,激光喷丸2024-T351航空铝合金的显微硬度随喷丸温度的升高而增大,弥散强化效应使得120 ℃激光温喷丸在2024-T351航空铝合金表面诱导的残余压应力幅值显著高于常温激光喷丸。
Abstract
Laser peening (LP) is conducted on aeronautical 2024-T351 aluminum alloy under different temperatures, and the influence law of temperature on its surface mechanical property is studied. In combination with the microstructure analysis, the strengthening mechanism of 2024-T351 aluminum alloy treated by warm laser peening (WLP) is revealed. The results indicate that the micro-hardness of aeronautical 2024-T351 aluminum alloy increases with the increment of peening temperature. The dispersion strengthening effect makes the amplitude of residual compressive stress induced by 120 ℃-WLP much higher than that by room-temperature LP.
参考文献

[1] H-Gangaraj S M, Alvandi-Tabrizi Y, Farrahi G H, et al. Finite element analysis of shot-peening effect on fretting fatigue parameters[J]. Tribology International, 2011, 44(11): 1583-1588.

[2] Shi M Q, Takayama Y, Ma C A, et al. Microstructure and texture evolution in titanium subjected to friction roll surface processing and subsequent annealing[J]. Transactions of Nonferrous Metals Society of China, 2012, 22(11): 2616-2627.

[3] 周建忠, 左立党, 黄舒, 等. 基于应变速率的激光喷丸强化6061-T6铝合金力学性能分析[J]. 中国激光, 2012, 39(5): 0503003.

    Zhou Jianzhong, Zuo Lidang, Huang Shu, et al. Analysis on mechanical property of 6061-T6 aluminum alloy by laser shot peening based on strain rate[J]. Chinese J Lasers, 2012, 39(5): 0503003.

[4] Huang S, Zhou J Z, Sheng J, et al. Effects of laser peening with different coverage areas on fatigue crack growth properties of 6061-T6 aluminum alloy[J]. International Journal of Fatigue, 2013, 47: 292-299.

[5] Juijerm P, Altenberger I, Scholtes B. Fatigue and residual stress relaxation of deep rolled differently aged aluminum alloy AA6110[J]. Materials Science and Engineering A, 2006, 426(1): 4-10.

[6] Wick A, Schulze V, Vhringer O. Effects of warm peening on fatigue life and relaxation behavior of residual stresses in AISI 4140 steel[J]. Materials Science and Engineering A, 2000, 293(1): 191-197.

[7] Harada Y, Mori K. Effect of processing temperature on warm shot peening of spring steel[J]. Journal of Materials Processing Technology, 2005, 162: 498-503.

[8] Ye C, Suslov S, Kim B J, et al. Fatigue performance improvement in AISI 4140 steel by dynamic strain aging and dynamic precipitation during warm laser shock peening[J]. Acta Materialia, 2011, 59(3): 1014-1025.

[9] Ye C, Liao Y L, Suslov S, et al. Ultrahigh dense and gradient nano-precipitates generated by warm laser shock peening for combination of high strength and ductility[J]. Materials Science and Engineering A, 2014, 609: 195-203.

[10] Zhou J Z, Meng X K, Huang S, et al. Effects of warm laser peening at elevated temperature on the low-cycle Cross Mark fatigue behavior of Ti6Al4V alloy[J]. Materials Science and Engineering A, 2015, 643: 86-95.

[11] Montross C S, Brandt M, Swain M V. Self-limiting hardness changes in laser peened 6061-T6 aluminium[J]. Surface Engineering, 2001, 17(6): 477-482.

[12] Liao Y L, Ye C, Kim B J, et al. Nucleation of highly dense nanoscale precipitates based on warm laser shock peening[J]. Journal of Applied Physics, 2010, 108(6): 063518.

[13] Dorman M, Toparli M B, Smyth N, et al. Effect of laser shock peening on residual stress and fatigue life of clad 2024 aluminium sheet containing scribe defects[J]. Materials Science and Engineering A, 2012, 548: 142-151.

[14] 余天宇, 戴峰泽, 张永康, 等. 平顶光束激光冲击2024铝合金诱导残余应力场的模拟与实验[J]. 中国激光, 2012, 39(10): 1003001.

    Yu Tianyu, Dai Fengze, Zhang Yongkang, et al. Simulation and experimental study on residual stress field of 2024 aluminum alloy induced by flat-top laser beam[J]. Chinese J Lasers, 2012, 39(10): 1003001.

[15] 赫尔, 培根. 位错导论[M].丁树深, 李齐, 译. 北京: 科学出版社, 1990: 199-204.

    Hull D, Bacon D J. Introduction to dislocations[M]. Ding Shushen, Li Qi, Transl. Beijing: Science Press, 1990: 199-204.

[16] 周建忠, 韩煜航, 黄舒, 等. 不同工艺温度对IN718合金激光温喷丸后残余应力和纳米硬度的影响[J]. 中国激光, 2015, 42(7): 0703001.

    Zhou Jianzhong, Han Yuhang, Huang Shu, et al. Effect of different process temperatures on residual stress and nano-hardness of warm laser peened INl718 superalloy[J]. Chinese J Lasers, 2015, 42(7): 0703001.

[17] 尹美杰, 陈江华, 刘春辉. 中断时效处理对AA2024铝合金力学性能和显微结构的影响[J]. 中国有色金属学报, 2015, 25(12): 3271-3281.

    Yin Meijie, Chen Jianghua, Liu Chunhui. Effect of interrupted ageing on mechanical property and microstructure of AA2024 alloy[J]. The Chinese Journal of Nonferrous Metals, 2015, 25(12): 3271-3281.

孟宪凯, 周建忠, 苏纯, 黄舒, 盛杰, 陈寒松, 徐家乐. 温度对激光喷丸强化2024航空铝合金表面力学性能的影响[J]. 中国激光, 2016, 43(10): 1002003. Meng Xiankai, Zhou Jianzhong, Su Chun, Huang Shu, Sheng Jie, Chen Hansong, Xu Jiale. Effect of Temperature on Surface Mechanical Property of 2024 Aluminum Alloy Treated by Laser Peening[J]. Chinese Journal of Lasers, 2016, 43(10): 1002003.

本文已被 3 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!