The Effects of Deposited Particles on the Fatigue Crack Growth Behavior of 7N01-T6 Aluminum Alloy
CHEN Yuqiang1, SONG Wenwei1, PAN Suping2, LIU Wenhui1,3, SONG Yufeng1,3, ZHANG Hao1,3
1 School of Mechanicl Engineering, Hunan University of Science and Technology, Xiangtan 411201 2 Advanced Research Center, Central South University, Changsha 410083 3 Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan University of Science and Technology, Xiangtan 411201
Abstract: The influences of graphite and alumina deposited particles on the fatigue crack propagation behavior of 7N01-T6 aluminum alloy at R=0.1 and R=0.5 were investigated by using a self-designed experimental method and combined with fatigue crack growth rate test and fracture morphology observation. The results show that the fatigue crack growth rate of the alloy in the graphite particle environment is the fastest under both stress ratio conditions in the crack growth stage Ⅰ and Ⅱ. When the R is 0.5, the fatigue crack growth rate of the alloy in the alumina particle environment is the slowest in the crack growth stage Ⅰ and Ⅱ. When the R is 0.1, ΔK<15 MPa·m1/2, the fatigue crack growth rate of the alloy in the alumina particle environment is the slowest. When the ΔK in the range from 15 MPa·m1/2 to 30 MPa·m1/2, the fatigue crack growth rate of the alloy in the alumina particle environment and atmospheric environment is quite similar. The increase of fatigue crack growth rate in graphite particle environment is due to the lubricated by graphite particles. It reduces the effect of crack closure during unloading. The decrease of the fatigue crack propagation rate in the alumina particle environment is due to the deposition of alumina particles on the fracture surface enhances the crack closure level during unloading.
作者简介: 陈宇强,男,博士,副教授,湖南科技大学材料成型与控制工程系副主任,主要研究方向为铝合金加工工艺与性能、损伤机理以及微结构表征。入选湖南省青年骨干教师、湖南省科技创新创业菁英培育计划。主持国家自然科学基金,湖南省创新创业技术投资专项,湘潭市科技创新“四个十”重大科技专项,校企合作科研项目,产学研成果转化项目等科研项目7项,获得湖南省自然科学奖三等奖一项,在Materials Science and Engineering A、Journal of Alloys and Compounds等学术刊物发表学术论文40余篇,获得授权专利10余项,软件注册权8项,担任Journal of Alloys and Compounds、Micro & Nano Letters、《稀有金属材料与工程》等期刊审稿人。
引用本文:
陈宇强, 宋文炜, 潘素平, 刘文辉, 宋宇锋, 张浩. 沉积颗粒对7N01-T6铝合金疲劳裂纹扩展行为的影响[J]. 材料导报, 2019, 33(10): 1697-1701.
CHEN Yuqiang, SONG Wenwei, PAN Suping, LIU Wenhui, SONG Yufeng, ZHANG Hao. The Effects of Deposited Particles on the Fatigue Crack Growth Behavior of 7N01-T6 Aluminum Alloy. Materials Reports, 2019, 33(10): 1697-1701.
1 Cai B, Zheng Z Q, Liao Z Q, et al. Materials Review A:Review Papers, 2010, 24(9), 134 (in Chinese). 蔡彪 , 郑子樵 , 廖忠全, 等. 材料导报:综述篇, 2010, 24(9), 134. 2 Chen Y Q, Pan S P, Liu W H, et al. Journal of Alloys and Compounds, 2017,709, 213. 3 Chen Y Q, Pan S P, Zhou M Z, et al.Materials Science and Engineering A, 2013, 580, 150. 4 Dursun T, Soutis C. Materials and Design, 2014, 56, 862. 5 Wang C Q, Xiong J J, Shenoi R A, et al. International Journal of Fatigue, 2016, 83, 280. 6 Chen Y Q, Song W W, Pan S P, et al. Journal of Central South University(Science and Technology), 2016, 47(10), 3332 (in Chinese). 陈宇强, 宋文炜, 潘素平, 等. 中南大学学报(自然科学版), 2016, 47(10), 3332. 7 Lv S L, Cui Y, Gao X S, et al. Materials Science and Engineering A, 2013, 574, 243. 8 Tuo W H, Yang S L, Yang W T, et al. Materials Review B:Research Papers, 2015, 29(10), 105 (in Chinese). 庹文海, 杨尚磊, 杨文涛, 等. 材料导报:研究篇, 2015, 29(10), 105. 9 Kinnersley S, Roelen A.Safety Science, 2007, 45, 31. 10 Burns J T, Gupta V K, Agnew S R, et al. International Journal of Fatigue, 2013, 55, 268. 11 Prasad N E, Vogt D, Bidlingmaier T, et al. Materials Science and Engineering A, 2000, 276, 283. 12 Zhu X, Jones J W,Allison J E, et al. Metallurgical and Materials transactions A, 2008, 39, 2681. 13 Chemin A E A, Saconi F, Filho W W B, et al. Engineering Fracture Mechanics, 2015, 141, 274. 14 Hui L, Zhou S, Xu L, et al.Advanced Materials Research, 2011, 337, 756. 15 Burns J T, Jones J J, Thompson A D, et al. International Journal of Fatigue, 2018, 106, 196. 16 Fonte M, Romeiro F, Freitas M D, et al. International Journal of Fatigue, 2003, 25, 1209. 17 Newman J A, Piascik R S.International Journal of Fatigue, 2004, 26, 923. 18 Liu W H, Zhou F, Qiu Q, et al. Hot Working Technology, 2016, 45(6), 44(in Chinese). 刘文辉,周凡,邱群,等. 热加工工艺, 2016, 45(6), 44. 19 Peng X D, Feng X Z, Hu D M, et al. Tribology, 2004, 24(6), 536 (in Chinese). 彭旭东, 冯向忠, 胡丹梅, 等. 摩擦学学报, 2004, 24(6), 536. 20 Zhou Z, Peng H X, Fan Z, et al. Materials Science and Technology, 2000, 16(7-8), 908. 21 Chen Y R, Shi X F, Peng X, et al. Acta Metallurgica Sinica, 1991, 27(4), 44 (in Chinese). 程育仁, 施晓锋, 彭湘, 等. 金属学报, 1991, 27(4), 44. 22 Siddiqui R A, Abdul-Wahab S A, Pervez T.Materials and Design, 2008, 29, 70. 23 Liu Z, Li F, Xia P, et al. Materials Science and Engineering A, 2015, 625, 271. 24 Yin D, Liu H, Chen Y, et al. International Journal of Fatigue, 2016, 84, 9. 25 Zhang J Z, He X D, Tang H, et al.Materials Science and Engineering A, 2008, 485, 115. 26 Halliday M D, Cooper C, Bowen P. International Journal of Fatigue, 2007, 29, 1195.