International Journal of Fatigue最新文献_第3页

Characterization of surface irregularities and fatigue strength evaluation of wire arc additive manufactured high strength steel specimens

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-28 DOI: 10.1016/j.ijfatigue.2024.108737

Jairan Nafar Dastgerdi , Omid Jaberi , Jonas Hensel

{"title":"Characterization of surface irregularities and fatigue strength evaluation of wire arc additive manufactured high strength steel specimens","authors":"Jairan Nafar Dastgerdi , Omid Jaberi , Jonas Hensel","doi":"10.1016/j.ijfatigue.2024.108737","DOIUrl":"10.1016/j.ijfatigue.2024.108737","url":null,"abstract":"<div><div>This paper aims to study the effects of surface topography on the fatigue strength of wire-arc additive manufacturing (WAAM) components, paying particular attention to the interaction of roughness, waviness, and microstructure. For this purpose, first, a novel surface topography characterization approach is proposed to separate waviness and roughness without distorting the surface features, as smaller-scale irregularities, called secondary crack-like defects, have been confirmed to exist at notch-like valleys of WAAM specimens. This novel approach can practically be employed for any surface data obtained by different measuring methods, and it is not limited to WAAM specimens. Then, Murakami’s <span><math><mrow><msqrt><mrow><mi>area</mi></mrow></msqrt></mrow></math></span> model with a corrected stress intensity factor is introduced to evaluate the fatigue strength of WAAM specimens by considering the interaction between surface features (roughness and waviness) and their simultaneous effect. This approach can also particularly predict the fatigue strength of other engineering components once a small secondary crack or defect exists at the notch tip without entailing fatigue tests or intricate analysis. Moreover, microstructure changes due to the back-and-forth transformations in the microstructure and the formation of a soft phase in the interlayer area at the notches during the manufacturing process with lower hardness values have been considered using this model.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108737"},"PeriodicalIF":5.7,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of ultrasonic surface rolling on fatigue performance of high carbon low alloy quenching-partitioning-tempering steel

IF 6 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-28 DOI: 10.1016/j.ijfatigue.2024.108734

Shengwei Qin, Guangrui Wang, Qihui Tian, Zhihua Liu, Minghao Zhao

{"title":"Influence of ultrasonic surface rolling on fatigue performance of high carbon low alloy quenching-partitioning-tempering steel","authors":"Shengwei Qin, Guangrui Wang, Qihui Tian, Zhihua Liu, Minghao Zhao","doi":"10.1016/j.ijfatigue.2024.108734","DOIUrl":"https://doi.org/10.1016/j.ijfatigue.2024.108734","url":null,"abstract":"In order to expand the application scope of the quenching-partitioning-tempering (Q-P-T) steel in the industrial field, ultrasonic rolling treatment (USRP) is carried out, and the influence of USRP on the fatigue properties of the Q-P-T steel is elucidated. Compared with the Q-P-T specimen (580 MPa), the fatigue limit of the USRP3 specimen increases to 620 MPa, and the crack initiation location is transferred from the surface to the core. The primary reasons for this fatigue strength incensement are as follows: a higher surface hardness effectively inhibits surface fatigue crack initiation; residual compressive stress reduces the driving force at crack tips and impedes crack propagation. Moreover, there is a continuous increase in hardness for the USRP3 specimen during cyclic loading due to dominant phase transformation strengthening effect caused by transformation from austenite to martensite. On the other hand, the USRP6 specimen possesses a gradient grain size structure with higher hardness and deeper range, which can decelerate crack propagation rate. However, surface damage caused by excessive ultrasonic rolling as well as the cyclic softening effect of the surface during fatigue ultimately counterbalance the positive influence of surface strengthening on fatigue properties.","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"92 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on surface Enhancement mechanism and fretting fatigue behavior of casting aluminum alloy under acousto-electropulsing-stress synergistic strengthening

IF 6 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-28 DOI: 10.1016/j.ijfatigue.2024.108733

Zheng Qiu-yang, Shi Hao-han, Li Yu, Jiang Zhi-guo, Zhou Zhen-yu, Ye Sen-bin, Piao Zhong-yu

{"title":"Study on surface Enhancement mechanism and fretting fatigue behavior of casting aluminum alloy under acousto-electropulsing-stress synergistic strengthening","authors":"Zheng Qiu-yang, Shi Hao-han, Li Yu, Jiang Zhi-guo, Zhou Zhen-yu, Ye Sen-bin, Piao Zhong-yu","doi":"10.1016/j.ijfatigue.2024.108733","DOIUrl":"https://doi.org/10.1016/j.ijfatigue.2024.108733","url":null,"abstract":"Casting aluminum alloy faces challenges during service, such as micro defects, low surface hardness, and inadequate fretting fatigue performance. This study employs acousto-electropulsing-stress synergistic strengthening to construct a strengthened layer structure on the surface of casting aluminum alloy, characterized by “micro-defect healing + surface gradient nanostructure.” The results demonstrate that, compared to surface burnishing processing, electro-ultrasonic surface burnishing processing (EUSBP) increases the thickness of the fine-grained layer by 75 % and enhances the amplitude of surface residual compressive stress by 39.3 % while simultaneously achieving micro-defect healing in the surface layer. Through fretting fatigue tests, it is discovered that the fretting fatigue life of EUSBP specimens is significantly higher than that of burnished and original specimens. Fracture surface analysis and damage zone characterization indicate that EUSBP specimens exhibit the best crack propagation resistance and fretting damage resistance. Molecular dynamics simulations reveal that EUSBP specimens enhance their resistance to fretting fatigue damage by utilizing the nano-gradient grain structure to inhibit dislocation motion and reduce the influence range of plastic deformation during the fretting fatigue process, resulting in a reduction of damage depth in the fretting fatigue damage zone by more than 25 %.","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"34 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cold expansion fatigue performance investigations of GH4169 inclined hole structures using numerical and experimental methods

IF 6 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-28 DOI: 10.1016/j.ijfatigue.2024.108736

Hangjie Shi, Yangjie Zuo

{"title":"Cold expansion fatigue performance investigations of GH4169 inclined hole structures using numerical and experimental methods","authors":"Hangjie Shi, Yangjie Zuo","doi":"10.1016/j.ijfatigue.2024.108736","DOIUrl":"https://doi.org/10.1016/j.ijfatigue.2024.108736","url":null,"abstract":"In this paper, the inclined cold expansion (ICE) method of superalloy open hole structures was proposed, which provided valuable insights for the life improvement of aero-engine inclined hole structures. The improvements in the static and fatigue properties of GH4169 specimens with inclined holes were characterized. In addition, tensile and fatigue tests were carried out, and the surface strains were assessed by digital image correlation (DIC). The stiffness degradation and fatigue fracture behavior of GH4169 specimens with inclined holes were also discussed. The results showed that ICE could cause the expansion of inclined hole structures and the enlargement of bulges, resulting in tangential residual compressive stress at the hole edge. With the increase of the hole inclinations, the residual stress of the specimen was more uneven in radial direction, while more uniform in axial direction. The fatigue life of the strengthened all increased under three loading levels. The crack initiation zone moved near the entrance layer after ICE. Moreover, ICE increased the crack growth zone, and significantly inhibited the crack growth rate and stiffness degradation rate.","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"15 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An experimental investigation of fatigue performance and damage distribution mechanism in Bi-Directional GFRP composites

IF 6 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-28 DOI: 10.1016/j.ijfatigue.2024.108735

Ateeb Ahmad Khan, Indra Vir Singh, Bhanu Kumar Mishra, Ramadas Chennamsetti

{"title":"An experimental investigation of fatigue performance and damage distribution mechanism in Bi-Directional GFRP composites","authors":"Ateeb Ahmad Khan, Indra Vir Singh, Bhanu Kumar Mishra, Ramadas Chennamsetti","doi":"10.1016/j.ijfatigue.2024.108735","DOIUrl":"https://doi.org/10.1016/j.ijfatigue.2024.108735","url":null,"abstract":"This study presents an experimental investigation of the fatigue performance and damage distribution mechanism of bi-directional GFRP composites. Uniaxial fatigue tests have been conducted under load-control, at stress ratios, R = 0.1, 0.5 and critical stress ratio <mml:math altimg=\"si26.svg\"><mml:mrow><mml:mo stretchy=\"false\">(</mml:mo><mml:mi>χ</mml:mi><mml:mo linebreak=\"goodbreak\" linebreakstyle=\"after\">=</mml:mo><mml:mo linebreak=\"badbreak\" linebreakstyle=\"after\">-</mml:mo><mml:mn>0.9</mml:mn><mml:mo stretchy=\"false\">)</mml:mo></mml:mrow></mml:math>. The influence of gauge length and surface roughness on fatigue life has been examined for R = 0.1. An infrared (IR) camera is employed to monitor temperature evolution and capture thermal images during the fatigue experiments. Fatigue stiffness degradation, energy dissipated per cycle, and severity of damage progression have been analyzed to elucidate the effects of stress levels and mean stress on fatigue performance. At higher stress levels, the damage is intense and localized, resulting in relatively shorter life due to fiber-breakage accompanied by rapid fatigue stiffness degradation. At lower stress levels, the damage is uniformly distributed and less severe, primarily involves stress concentration, resulting in longer fatigue lives. The study highlights the contrasting damage progression mechanisms for tension–tension and tension–compression fatigue. Under tension–tension fatigue, an oval-shaped damage zone forms perpendicular to the loading direction indicating transverse crack propagation, while under tension–compression fatigue, the damage zone aligns parallel to the loading direction indicating longitudinal crack propagation due to compressive loading.","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"18 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142793444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “J-integral analysis: An EDXD and DIC comparative study for a fatigue crack” [Int. J. Fatigue 134 (2020) 105474]

IF 6 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-27 DOI: 10.1016/j.ijfatigue.2024.108722

A. Koko, P. Earp, T. Wigger, J. Tong, T.J. Marrow

引用次数: 0

Hybrid-driven probabilistic damage assessment of creep-fatigue-oxidation interaction

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-27 DOI: 10.1016/j.ijfatigue.2024.108732

Wen-Rui Nie , Hang-Hang Gu , Xian-Cheng Zhang , Shan-Tung Tu , Run-Zi Wang

{"title":"Hybrid-driven probabilistic damage assessment of creep-fatigue-oxidation interaction","authors":"Wen-Rui Nie , Hang-Hang Gu , Xian-Cheng Zhang , Shan-Tung Tu , Run-Zi Wang","doi":"10.1016/j.ijfatigue.2024.108732","DOIUrl":"10.1016/j.ijfatigue.2024.108732","url":null,"abstract":"<div><div>This paper presents a hybrid-driven probabilistic damage assessment approach by considering creep-fatigue-oxidation damage interaction (CFO-DI). Based on generalized strain energy density exhaustion (GSEDE) framework, the hybrid-driven concept integrates the strengths of both physics-based models and machine learning, exploring the frontier from deterministic evaluation to probabilistic assessment. Experimental investigations involving generalized creep-fatigue loading tests are conducted to establish a comprehensive dataset in Inconel 718 at 650 °C. Deterministic models for fatigue, creep, and oxidation damages are developed, and their interactions are analyzed using the GSEDE framework. To tackle limited experimental data, a divide-and-conquer strategy employing machine learning models is implemented for data augmentation. Probabilistic assessments are performed incorporating uncertainties from material properties, loading conditions, and model parameters using Monte Carlo simulations and Latin Hypercube Sampling. The results demonstrate accurate life prediction accuracy and reliable probability distributions in the presence of oxidation damage. Finally, a novel three-dimensional probabilistic CFO-DI assessment diagram quantified by the confidence level is developed, providing a technical pathway for safe-life design in high-temperature structural applications.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108732"},"PeriodicalIF":5.7,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A microstructure sensitive machine learning-based approach for predicting fatigue life of additively manufactured parts 基于微观结构敏感的机器学习方法，用于预测快速成型零件的疲劳寿命

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-26 DOI: 10.1016/j.ijfatigue.2024.108724

Prateek Kishore , Aratrick Mondal , Aayush Trivedi , Punit Singh , Alankar Alankar

{"title":"A microstructure sensitive machine learning-based approach for predicting fatigue life of additively manufactured parts","authors":"Prateek Kishore , Aratrick Mondal , Aayush Trivedi , Punit Singh , Alankar Alankar","doi":"10.1016/j.ijfatigue.2024.108724","DOIUrl":"10.1016/j.ijfatigue.2024.108724","url":null,"abstract":"<div><div>Accurate fatigue life prediction of additive manufactured parts is critical for the reliability and safety assessment of the designs made for aerospace applications. The fatigue life depends on the cyclic stress experienced due to loads in operation, surface roughness, internal microstructure, and defects in the parts. The microstructure of a material contains signatures of the manufacturing process and post-processing experienced by the part. Incorporating microstructure information in fatigue life prediction is difficult using analytical and empirical relations. A data–driven machine learning framework can be used to model complex phenomena without solving the detailed underlying physics. Manual selection of important features from microstructure may not capture all the properties that affect fatigue. In this work, the fatigue data of Ti-6Al-4V alloy is collected from several sources and machine learning models are trained using surface roughness, stress cycles and microstructure images. The effect of utilizing microstructure images and their 2-point statistics data with convolutional neural networks and Gaussian process regression for prediction of fatigue life are demonstrated. Various methods of image processing, data preparation, and modeling techniques are studied and outcomes are discussed.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108724"},"PeriodicalIF":5.7,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the behavior and mechanism of double transition points in stable fatigue crack growth of superelastic NiTi shape memory alloy

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-26 DOI: 10.1016/j.ijfatigue.2024.108719

Jinyu Wang, Xiaofan He

引用次数: 0

Effect of grain boundary phase formed by Mn addition on initiation and propagation of fatigue cracks in homogenized Cu-6Ni-1.3Si alloy

IF 5.7 2区材料科学

International Journal of Fatigue Pub Date : 2024-11-26 DOI: 10.1016/j.ijfatigue.2024.108731

Masahiro Goto , Takaei Yamamoto , Sangshik Kim , Eun-Ae Choi , Seung Zeon Han

{"title":"Effect of grain boundary phase formed by Mn addition on initiation and propagation of fatigue cracks in homogenized Cu-6Ni-1.3Si alloy","authors":"Masahiro Goto , Takaei Yamamoto , Sangshik Kim , Eun-Ae Choi , Seung Zeon Han","doi":"10.1016/j.ijfatigue.2024.108731","DOIUrl":"10.1016/j.ijfatigue.2024.108731","url":null,"abstract":"<div><div>High-strength cast Cu alloys often contain substantial quantities of alloying elements that promote the nucleation of heterogeneous particles, particularly at grain boundaries (GBs). In the Cu-6Ni-1.3Si alloy, intermetallic compounds such as Ni<sub>2</sub>Si form within the matrix and along the GBs following homogenization. Ni<sub>2</sub>Si particles within the matrix are homogeneously nucleated with diameters of a few tens of nanometers, which enhances matrix strength. However, heterogeneously nucleated Ni<sub>2</sub>Si particles at GBs, which can be several micrometers in size, negatively impact overall strength. To improve the strength of Cu-6Ni-1.3Si alloy, 2.1 wt% Mn was added. This Mn addition led to the formation of plate- or film-shaped intermetallic compounds, specifically Ni<sub>16</sub>Si<sub>7</sub>Mn<sub>6</sub> (G-phase), at GBs after homogenization. Despite the Mn addition, Ni<sub>2</sub>Si precipitates with diameters of a few tens of nanometers still formed within the grains, but these were more densely distributed in the Mn-added alloy compared to the Mn-free alloy. Fatigue tests conducted on round bar specimens of both alloys showed that Mn addition enhanced fatigue strength. This enhancement is attributed to the suppression of both crack initiation and propagation along the GBs and within the matrix.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"192 ","pages":"Article 108731"},"PeriodicalIF":5.7,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0