铝制板翅式换热器用Al3003的疲劳机理分析

兰州理工大学学报 ›› 2026, Vol. 52 ›› Issue (1): 68-75.

铝制板翅式换热器用Al3003的疲劳机理分析

马峰¹, 王圣寻², 麻宏强^*2, 陈海亮²

1.山西工程科技职业大学设备工程学院, 山西晋中 030619;
2.华东交通大学土木建筑学院, 江西南昌 330013

收稿日期:2023-11-07 出版日期:2026-02-28 发布日期:2026-03-05
通讯作者: 麻宏强(1984-),男,江西南昌人,博士,教授.Email:mahq2014@sina.com
基金资助:
国家自然科学基金(51808275)

Fatigue fracture mechanism of Al3003 in Aluminum plate-fin heat exchangers

MA Feng¹, WANG Sheng-xun², MA Hong-qiang², CHEN Hai-liang²

1. College of Equipment Engineering, Shanxi Vocational University of Engineering Science and Technology, Jinzhong 030619, China;
2. School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China

Received:2023-11-07 Online:2026-02-28 Published:2026-03-05

摘要/Abstract

摘要： 为强化液化天然气关键设备铝制板翅式换热器的疲劳性能并提高其疲劳寿命,基于疲劳试验与断口形貌分析方法,通过宏观与扫描电子显微镜微观观测对比分析其主要材料Al3003典型区域的疲劳断口形貌特征,探讨Al3003的疲劳机理.结果表明,Al3003高、低循环应力下平均疲劳寿命分别为1.92×10⁴周及4.79×10⁶周.Al3003高、低循环应力下疲劳区具有相似的裂纹扩展过程,但是其面积及内部疲劳源数量不同.高循环应力下试样内部只有一个疲劳源;低循环应力下试样内部有两个主要的疲劳源以及众多的小疲劳源.Al3003高、低循环应力下临界区具有相似的整体形貌特征,但是其滑移带及撕裂状形貌密集程度不同.Al3003高、低循环应力下瞬时断裂区具有相似的形貌特征,但是其延伸处形貌所占瞬时断裂区比例不同.

关键词: 铝制板翅式换热器, Al3003, 疲劳寿命, 疲劳机理, 断裂形貌

Abstract: In order to improve the fatigue performance and extend the fatigue life of the aluminum plate-fin heat exchanger used in liquefied natural gas (LNG) applications, based on fatigue testing and fracture morphology analysis methods, the fatigue fracture morphology characteristics of the typical areas of the main material Al3003 are compared and analyzed through macroscopic and scanning electron microscopy observations, and the fatigue mechanism of Al3003 is explored. The results indicate that the average fatigue lives of Al3003 under high and low cyclic stresses are 1.92×10⁴ cycles and 4.79×10⁶ cycles, respectively. The fatigue zone of Al3003 exhibits a similar crack propagation process under high and low cyclic stresses, but its area and number of internal fatigue sources are different. There is only one fatigue source inside the specimen under high cyclic stress, whereas there are two main fatigue sources and numerous small fatigue sources inside the specimen under low cyclic stress. The critical zone of Al3003 under high and low cyclic stress has similar overall morphology characteristics, but its slip bands and tearing morphology are different in density. The instantaneous fracture zone of Al3003 under high and low cyclic stress has similar morphological characteristics; however, the proportion of its extension morphology in the instantaneous fracture zone is different.

Key words: aluminum plate-fin heat exchangers, Al3003, fatigue life, fracture mechanism, fracture morphology

中图分类号:

TE88

马峰, 王圣寻, 麻宏强, 陈海亮. 铝制板翅式换热器用Al3003的疲劳机理分析[J]. 兰州理工大学学报, 2026, 52(1): 68-75.

MA Feng, WANG Sheng-xun, MA Hong-qiang, CHEN Hai-liang. Fatigue fracture mechanism of Al3003 in Aluminum plate-fin heat exchangers[J]. Journal of Lanzhou University of Technology, 2026, 52(1): 68-75.

参考文献

[1] 于思捷.铝制板翅式换热器钎焊工艺性研究 [J].中国化工装备,2019,21(1):35-37.
[2] 任红艳.试析铝制板翅式换热器导流结构的优化设计 [J].中国设备工程,2019(9):92-93.
[3] 麻宏强,刘叶敏,厚彩琴,等.外掠管束间空气-水蒸发冷却传热传质及压降特性模拟 [J].哈尔滨工业大学学报,2022,54(6):147-155.
[4] 吴瑶,曹铁山,赵杰,等.3003铝合金的动态拉伸力学性能及断口分析 [J].轻合金加工技术,2021,49(11):32-38.
[5] HAIDER P,FREKO P,ACHER T,et al.Influence of inlet configuration and distributor geometry on the performance of cryogenic plate-fin heat exchangers [J].Applied Thermal Engineering,2021,195:117197.
[6] MA H,WANG S,XIE Y,et al.The relationship between stress of plate-fin structures and emergency stop operation process in LNG heat exchanger [J].Oil & Gas Science and Technology-Revue d’IFP Energies nouvelles,2021,76:77.
[7] 陈朝轶,杨京,李军旗,等.模拟海洋大气环境下Cl^－质量分数对3003铝合金腐蚀行为的影响 [J].表面技术,2015,44(3):116-121.
[8] YANG C,WANG B B,YU B H,et al.High-cycle fatigue and fracture behavior of double-side friction stir welded 6082Al ultra-thick plates [J].Engineering Fracture Mechanics,2020,226:106887.
[9] KUMAR Y B,SINGH B S,SHARMA V.A review on fracture and fatigue behaviour of FSW joints of Al alloys [J].Materials Today:Proceedings,2024,113:193-199.
[10] LIN Y,ZHANG Q,ZHANG F,et al.Microstructure and strength correlation of pure Al and Al-Mg syntactic foam composites subject to uniaxial compression [J].Materials Science and Engineering:A,2017,696:236-247.
[11] SHUKLA S S,MURTHY K S R K.A study on the effect of different Paris constants in mixed mode (I/II) fatigue life prediction in Al 7075-T6 alloy [J].International Journal of Fatigue,2023,176:107895.
[12] 刘雪松,李书齐,王苹,等.6N01-T5铝合金焊接接头疲劳断裂分析 [J].焊接学报,2009,30(10):25-28.
[13] 张红霞,吴广贺,闫志峰,等.5A06铝合金及其焊接接头的疲劳断裂行为 [J].中国有色金属学报,2013,23(2):327-335.
[14] 吴华.5A06铝合金焊接接头的疲劳性能 [J].热处理技术与装备,2011,32(2):22-25.
[15] 刘乐乐,姜锋,汪莹,等.不同应力水平下5A06铝合金的疲劳断口研究 [J].宇航材料工艺,2015,45(5):70-74.
[16] 李想,邓彩艳,龚宝明,等.5A06铝合金焊接接头在超长寿命区间的疲劳性能 [J].焊接学报,2016,37(2):59-62.
[17] 陈涛,赵路远,李慧,等.应力控制下7075-T651铝合金的疲劳断裂行为 [J].机械工程材料,2017,41(7):1-5.
[18] 刘敬伟,毛红奎,徐宏.ZL114A铝合金疲劳性能影响因素概述 [J].铸造技术,2014,35(2):267-270.
[19] 刘常升,李海雄,杨弥珺,等.应力集中对2024铝合金高周疲劳寿命的影响 [J].东北大学学报(自然科学版),2012,33(4):517-520.
[20] 汪莹,姜锋,路丽英,等.2219铝合金在不同加载应力下的疲劳断裂机制 [J].轻合金加工技术,2016,44(9):26-31.
[21] 马立勇,高文秀,石树正,等.航空用中心孔铝板材疲劳寿命研究 [J].河北建筑工程学院学报,2016,34(2):45-47.
[22] SHIVANKAR S,CHEN J,LIU Y.Subcycle fatigue crack growth and equivalent initial flaw size model for fatigue life assessment under arbitrary loadings for Al-7075 [J].International Journal of Fatigue,2022,156:106685.
[23] BRITO O G A,CARDOSO R A,FREIRE J R C S,et al.A generalized ANN-multiaxial fatigue nonlocal approach to compute fretting fatigue life for aeronautical Al alloys [J].Tribology International,2023,180:108250.
[24] 范宋杰,何国球,张卫华,等.A356铸造铝合金疲劳性能影响因素概述 [J].材料导报,2007(9):59-62.
[25] MENG Z J,ZHANG C S,WU C G,et al.Low cycle fatigue behavior and fatigue life prediction of 2195 Al-Li alloy at warm temperatures [J].Transactions of Nonferrous Metals Society of China,2023,33(9):2574-2587.
[26] GAIROLA S,VERMA R,JAYAGANTHAN R.Study on fatigue and fracture behavior of Al 2024 alloy through XFEM and stress-life approach[J].Procedia Structural Integrity,2023,46:182-188.
[27] SARKAR A,RAZAVI N,RINGEN G,et al.Assessing the fatigue behaviour of recycled Al-alloys:a critical review [J].Materialia,2023,32:101938.
[28] MA H,WANG S,WANG J,et al.Investigation on strength and fracture mechanism of aluminum plate-fin structures at cryogenic temperature [J].Engineering Failure Analysis,2023,152:107512.