Materials Testing最新文献

Microstructural, mechanical and nondestructive characterization of X60 grade steel pipes welded by different processes 采用不同工艺焊接的 X60 级钢管的微观结构、机械和无损表征

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-08-09 DOI: 10.1515/mt-2024-0121

Onur Altuntaş, Emre Özer, Demet Zalaoğlu, Mustafa Übeyli

{"title":"Microstructural, mechanical and nondestructive characterization of X60 grade steel pipes welded by different processes","authors":"Onur Altuntaş, Emre Özer, Demet Zalaoğlu, Mustafa Übeyli","doi":"10.1515/mt-2024-0121","DOIUrl":"https://doi.org/10.1515/mt-2024-0121","url":null,"abstract":"\u0000 In this paper, the welding quality of API 5L X60 steel pipes was investigated after the application of three different welding scenarios by applying submerged arc welding (SMAW), tungsten inert gas (TIG) and hybrid (TIG + SMAW) welding methods with an average heat input of ca. 1 kJ mm−1 for all passes. For this purpose, the ultrasonic and radiographic tests were done to detect possible discontinuities such as crack and porosity in the welding zones. In addition, the macro and microstructures of weld zones were made to examine different zones in terms of weld quality and phases. Moreover, the hardness, impact toughness and tensile tests were carried out to determine the mechanical properties of the weldments. The tensile strength of the pipe weldments was recorded to be ∼603, 610 and 625 MPa after the welding of pipes by SMAW, TIG + SMAW and TIG welding, respectively. In addition, the impact toughness of the welds was obtained to be 48, 76 and 66 J, for these welding methods, successively. According to the experimental findings, all three welding plans were successfully applied to the steel pipes and found to be suitable regarding the relevant international standards.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141923561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Enhancing the performance of a additive manufactured battery holder using a coupled artificial neural network with a hybrid flood algorithm and water wave algorithm 使用具有混合洪水算法和水波算法的耦合人工神经网络提高增材制造电池支架的性能

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-08-09 DOI: 10.1515/mt-2024-0217

B. Yildiz

引用次数: 0

Microstructural characteristics and mechanical properties of 3D printed Kevlar fibre reinforced Onyx composite 三维打印凯夫拉纤维增强缟玛瑙复合材料的微结构特性和机械性能

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-08-09 DOI: 10.1515/mt-2024-0138

Alagar Vaithiyanathan, Hameed Farhan, Dhanigaivel Elil Raja, Sundar Prathap Singh, Tushar Sonar

{"title":"Microstructural characteristics and mechanical properties of 3D printed Kevlar fibre reinforced Onyx composite","authors":"Alagar Vaithiyanathan, Hameed Farhan, Dhanigaivel Elil Raja, Sundar Prathap Singh, Tushar Sonar","doi":"10.1515/mt-2024-0138","DOIUrl":"https://doi.org/10.1515/mt-2024-0138","url":null,"abstract":"\u0000 The main objective of this study is to develop the Kevlar fibre reinforced Onyx composite (KFRO) material by employing the 3D printing technology and examine the effect of Kevlar fibre reinforcement percentage on microstructural characteristics and mechanical properties of developed composite material. The methodology of continuous fibre reinforced composites (CFRC) was followed and the Kevlar fibre reinforcement % was varied as 10 %, 20 % and 30 % in the composite material fabrication. Results disclosed that the KFRO composite 3D printed using 30 % Kevlar fibre reinforcement in Onyx matrix yielded greater tensile strength of 124 MPa, flexural strength of 105 MPa, impact toughness of 2.4 J and shore hardness of 76 D. The mechanical properties of KFRO composite were significantly improved at 20 % of Kevlar fibre reinforcement compared to 10 % of Kevlar fibre reinforcement. Further increase in Kevlar fibre reinforcement up to 30 % showed slight enhancement in mechanical properties of KFRO composite when compared to 20 % of Kevlar fibre reinforcement. The overall strength improvement is a result of the increased reinforcement, precise alignment of fibres in the loading direction, and the uniform distribution of fibres within the onyx.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141925266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Experimental investigations and material modeling of an elastomer jaw coupling 弹性颚式联轴器的实验研究和材料建模

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-07-17 DOI: 10.1515/mt-2024-0028

Arthur Ewert, Johannes D. M. Menning, Artem Prokopchuk, T. Rosenlöcher, E.-F. Markus Vorrath, Thomas Wallmersperger, Berthold Schlecht

{"title":"Experimental investigations and material modeling of an elastomer jaw coupling","authors":"Arthur Ewert, Johannes D. M. Menning, Artem Prokopchuk, T. Rosenlöcher, E.-F. Markus Vorrath, Thomas Wallmersperger, Berthold Schlecht","doi":"10.1515/mt-2024-0028","DOIUrl":"https://doi.org/10.1515/mt-2024-0028","url":null,"abstract":"\u0000 This work investigates the hyper-viscoelastic behavior of a thermoplastic polyurethane IROGRAN A 92 E 5670 FCM used in the gear rim of a jaw coupling. The aim is to provide the material parameters for the modeling of jaw couplings in engineering tasks. Uniaxial compression tests were conducted at various temperatures and loading speeds to fit a hyper-viscoelastic material model. The material model uses the Yeoh free energy and the power law model with one Maxwell element. The parametrized material model showed very good results in comparison to experimental data. In addition, the influence of friction on the experiments was modeled, investigated, and discussed. Further component tests for a jaw coupling of size 28 were conducted with two different specimen types. The original gear rim and a modified gear rim with central boreholes for integrated sensors were used in the test. The influence of such a modification was investigated with four different loading cases, focusing on the torsion-torque characteristic and the relative damping. These component tests enable the validation of numerical models of jaw couplings.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141828452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Numerical analysis of cathodic protection of a Q355ND frame in a shallow water subsea Christmas tree 浅水海底圣诞树中 Q355ND 框架的阴极保护数值分析

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-07-15 DOI: 10.1515/mt-2023-0394

Shaodong Ju, Yuming Liu, Qishuai Yin, Xing Wang, Shiqiang Wang, Zitao Jiang, Siyao Deng

引用次数: 0

Compositional zoning and evolution of symplectite coronas in jadeitite 翡翠中的成分分带和共闪石冠状体的演变

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-07-12 DOI: 10.1515/mt-2023-0399

Yingying Xing, Lijian Qi

{"title":"Compositional zoning and evolution of symplectite coronas in jadeitite","authors":"Yingying Xing, Lijian Qi","doi":"10.1515/mt-2023-0399","DOIUrl":"https://doi.org/10.1515/mt-2023-0399","url":null,"abstract":"\u0000 Multistage fluid activities play an important role in the interaction between jadeitite and symplectite coronas; therefore, we studied the compositional zoning and evolution of representative Myanmar jadeitite. Under the influence of multistage Ca-, Na-, and Si-rich fluid activity, some minerals in Myanmar jadeitite formed symplectite coronas with concentric rings and multilayer metasomatic reaction rim structures. Additionally, the concentrations of Cr and Fe decrease from the core to the peripheral jadeite minerals, whereas the concentration of Si markedly increases. There is almost no Si or Ca in the chromite core, and the concentrations of Si and Ca increase sharply in rims composed of uvarovite. Due to Cr diffusion, the edge of the jadeite adjacent to kosmochlor is Cr-rich and Al-poor. The different element concentrations indicate that the uvarovite formed from the presence of a chromite and jadeite interaction, Si in the kosmochlor after metasomatism or an external Ca-rich fluid. One possible explanation for the formation of kosmochlor is the interaction between chromite and a Na- and Si-rich fluid. Also, Ca-rich fluid could have first interacted with chromite and formed uvarovite; subsequently, a Na-rich fluid could have entered and become saturated with kosmochlor, leading to the formation of kosmochlor surrounding the uvarovite.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141653415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Mechanical analysis of hybrid structured aircraft wing ribs with different geometric gaps 具有不同几何间隙的混合结构飞机翼肋的力学分析

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-07-12 DOI: 10.1515/mt-2024-0033

Tümay Battal Akdoğan, İ. Y. Sülü

引用次数: 0

Microstructure and oxidation of a Ni–Al based intermetallic coating formation on a Monel-400 alloy Monel-400 合金上形成的镍铝基金属间化合物涂层的微观结构和氧化情况

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-07-10 DOI: 10.1515/mt-2024-0038

T. Yener, Alperen Refik Bilal Özsarı, K. M. Döleker, A. Erdoğan, S. Yener

{"title":"Microstructure and oxidation of a Ni–Al based intermetallic coating formation on a Monel-400 alloy","authors":"T. Yener, Alperen Refik Bilal Özsarı, K. M. Döleker, A. Erdoğan, S. Yener","doi":"10.1515/mt-2024-0038","DOIUrl":"https://doi.org/10.1515/mt-2024-0038","url":null,"abstract":"\u0000 The purpose of this work was to examine how the microstructure and oxidation characteristics of Monel 400 Alloy were affected by the low-temperature aluminizing method. Monel 400 alloy was subjected to a low-temperature aluminizing procedure for 2 and 4 h at 600, 650, and 700 °C. Pure aluminum powder was used as the source of aluminum deposition to prepare the packs for the process. The activator and inert filler utilized were ammonium chloride (NH4Cl) and Al2O3 powder, respectively. The coating surfaces were characterized using energy dispersive spectroscopy (EDS) and scanning electron microscopy (SEM), as well as X-ray diffraction (XRD) analysis. It was discovered that the through-thickness variance in the layer microstructure varied between 4 and 30 µm, and that it increased with greater process temperatures and times. The coating layer hardness grew to 800 HV after the deposition process, whereas the matrix hardness remained at 200 HVN. Furthermore, the sample that was coated at 600 °C for 4 h was exposed to oxidation at 750–800 and 850 °C. It was found that the oxidation kinetics were 176 kJ/mol.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141659252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Development of sinter linings for high-speed trains 为高速列车开发烧结衬里

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-07-08 DOI: 10.1515/mt-2023-0422

Sunay Bebekoğlu, Ahmet Topuz, Esin Çakır, Abdülhamit Adsoy, Turgay Yıldıran

{"title":"Development of sinter linings for high-speed trains","authors":"Sunay Bebekoğlu, Ahmet Topuz, Esin Çakır, Abdülhamit Adsoy, Turgay Yıldıran","doi":"10.1515/mt-2023-0422","DOIUrl":"https://doi.org/10.1515/mt-2023-0422","url":null,"abstract":"Abstract In this study, brake linings with Cu (copper)-based and Cu-10Sn (bronze)-based matrix structures have been developed and produced by the powder metallurgy method using sinter metal technology for use in high-speed trains. The developed linings were compared with commercial high-speed train linings. Firstly, the mixing process was carried out in a Turbulo 3V three-dimensional mixer for 4.5 h at 50 rpm. The pressing process was performed at room temperature, under the pressure of 350–450 MPa, and the sintering temperature for Cu-based linings was 1,000 °C, while for Cu-10Sn-based linings, it was 800 °C. After the pressing and sintering processes, lining sample density calculations were conducted, and hardness tests were carried out in the Rockwell L scale. Shear strength tests, friction coefficient, and wear tests were conducted according to SAE J 661 standards. It was observed that sinter metal brake linings with Cu and Cu-10Sn main matrix structures showed similar properties and met the technical requirements. It was determined that the developed production prescriptions are promising for industrial production and patent studies.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141670485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Optimization of electric vehicle design problems using improved electric eel foraging optimization algorithm 使用改进的电鳗觅食优化算法优化电动汽车设计问题

IF 2.4 4区材料科学

Materials Testing Pub Date : 2024-07-05 DOI: 10.1515/mt-2024-0098

Pranav Mehta, B. Yildiz, S. M. Sait, Ali Rıza Yıldız

引用次数: 0