Materials Testing最新文献_第6页

Fatigue performance of laser cut carbon fiber-reinforced epoxy and polyamide 6 considering specimen width 考虑试样宽度的激光切割碳纤维增强环氧树脂和聚酰胺6的疲劳性能

IF 2.5 4区材料科学

Materials Testing Pub Date : 2023-09-08 DOI: 10.1515/mt-2023-0170

L. Gerdes, S. Mrzljak, J.-M. Keuntje, V. Wippo, P. Jaeschke, Frank Walther

{"title":"Fatigue performance of laser cut carbon fiber-reinforced epoxy and polyamide 6 considering specimen width","authors":"L. Gerdes, S. Mrzljak, J.-M. Keuntje, V. Wippo, P. Jaeschke, Frank Walther","doi":"10.1515/mt-2023-0170","DOIUrl":"https://doi.org/10.1515/mt-2023-0170","url":null,"abstract":"Abstract Since the development of laser systems technology led to a significantly decreased energy input by pulsing, laser cutting became a noteworthy method for cutting fiber-reinforced polymers. Despite the occurrence of heat introduction and heat-affected zones (HAZ), there are advantages regarding processing speed and maneuverability. Within this work, the influence of two cutting parameters (low (A) and high heat introduction (B)) on the fatigue properties of carbon fiber–reinforced epoxy and polyamide 6 were investigated. At the same time, micro waterjet cut specimens were added as a reference. In doing so, laminates were cut to different specimen widths and orientations. Multiple amplitude tests were performed with strain and temperature measurements. The results show an influence of specimen width on fatigue lifetime for the epoxy system, but not in polyamide 6. The 45° specimens for both CFR-EP and CFR-PA6 showed a decreased lifetime when cut with parameters B. However, these findings do not apply to 0° specimens, since parameters A lead to a smaller lifetime for CFR-EP, and no influence was found for CFR-PA6. Furthermore, no clear HAZ could be identified for A. Since there is a decrease in lifetime for CFR-EP, the necessity of applying further methods for HAZ detection is described.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":"65 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85365810","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}

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Tensile, bending, and impact properties of laminated carbon/aramid/glass hybrid fiber composites 层压碳/芳纶/玻璃混杂纤维复合材料的拉伸、弯曲和冲击性能

IF 2.5 4区材料科学

Materials Testing Pub Date : 2023-09-08 DOI: 10.1515/mt-2023-0207

S. Ekşi, Fatih Emir Danyildiz, Neslihan Özsoy, Murat Özsoy

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Effect of carbon nanotubes on microstructure and mechanical properties of TiZrVMnCu–Er high entropy alloy composites 碳纳米管对TiZrVMnCu-Er高熵合金复合材料组织和力学性能的影响

IF 2.5 4区材料科学

Materials Testing Pub Date : 2023-09-08 DOI: 10.1515/mt-2023-0066

Xing Wang, Xiao-song Jiang, Jinmei Chen, Hongliang Sun

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Experimental investigation of mechanical properties of PLA, ABS, and PETG 3-d printing materials using fused deposition modeling technique 采用熔融沉积建模技术对PLA、ABS和PETG三维打印材料的力学性能进行了实验研究

4区材料科学

Materials Testing Pub Date : 2023-09-08 DOI: 10.1515/mt-2023-0202

Mehmet Kopar, Ali Riza Yildiz

{"title":"Experimental investigation of mechanical properties of PLA, ABS, and PETG 3-d printing materials using fused deposition modeling technique","authors":"Mehmet Kopar, Ali Riza Yildiz","doi":"10.1515/mt-2023-0202","DOIUrl":"https://doi.org/10.1515/mt-2023-0202","url":null,"abstract":"Abstract In recent years, there has been a logarithmic interest in three-dimensional printing technologies. This technique has made it possible to make more intricately shaped parts of superior quality, allowing for use in a variety of industries, including aircraft, automobiles, and ships. This study characterized the materials and assessed the mechanical features of PLA, PETG, and ABS materials generated at various raster angles. The strength ratios of the various materials have been found to fluctuate when the raster angles change. The PLA parts created at a picture raster angle of 45° had the maximum tensile strength. ABS material created with a picture raster angle of 45° has been shown to have the best energy absorption, and PLA material made with a raster angle of 45° has the best performance compressive strength. When bending strength was evaluated, it was found that samples of ABS made with a raster angle of 0–90° had the greatest value. The SEM micrographs were obtained, and the tensile test was used to examine the fracture behavior of the materials. As a result, it has been found that materials created using various raster angles can have various strength values from one another.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136298692","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}

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Electrochemical, mechanical, and antibacterial properties of the AZ91 Mg alloy by hybrid and layered hydroxyapatite and tantalum oxide sol–gel coating 羟基磷灰石和氧化钽混合层状溶胶-凝胶涂层对AZ91镁合金电化学、力学和抗菌性能的影响

IF 2.5 4区材料科学

Materials Testing Pub Date : 2023-09-08 DOI: 10.1515/mt-2023-0138

Sevda Albayrak, Canser Gül, Nuray Emin, U. Gökmen, Halil Karakoç, A. Uzun, H. Çinici

{"title":"Electrochemical, mechanical, and antibacterial properties of the AZ91 Mg alloy by hybrid and layered hydroxyapatite and tantalum oxide sol–gel coating","authors":"Sevda Albayrak, Canser Gül, Nuray Emin, U. Gökmen, Halil Karakoç, A. Uzun, H. Çinici","doi":"10.1515/mt-2023-0138","DOIUrl":"https://doi.org/10.1515/mt-2023-0138","url":null,"abstract":"Abstract The corrosion and bacterial behavior of AZ91 magnesium alloy coated with sol–gel-deposited amorphous tantalum oxide and hydroxyapatite have been investigated. The objective was to assess the potential suitability of AZ91 for permanent prosthesis applications. The coatings were applied in layered and hybrid configurations and characterized using various techniques including X-ray diffractometry, Fourier transform infrared spectroscopy, scanning electron microscopy/energy dispersive spectrometry, and drop analyses. The antibacterial properties were evaluated through interactions with Staphylococcus aureus and Escherichia coli strains. Mechanical properties and adhesion were determined via linear scratch tests, and electrochemical corrosion tests were conducted in different media. The release of aluminum ions from the samples in Dulbecco’s Modified Eagle’s Medium was monitored over 28 days. The findings revealed that the amorphous tantalum oxide coating, particularly in combination with hydroxyapatite, improved antibacterial properties and positively influenced corrosion and scratch resistance. The layered and hybrid coatings demonstrated the highest corrosion resistance. The release of aluminum ions remained within acceptable levels in the tested medium. Overall, the study provides valuable insights into the potential of sol–gel coatings on AZ91 for prosthetic applications, considering antibacterial behavior, corrosion resistance, and aluminum release.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":"33 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78924854","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}

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Effect of polyurethane matrix and steel fiber in combination with glass fiber or basalt fiber on the properties of hybrid composite laminates 聚氨酯基体和钢纤维与玻璃纤维或玄武岩纤维复合对混杂复合层压板性能的影响

4区材料科学

Materials Testing Pub Date : 2023-09-01 DOI: 10.1515/mt-2023-0026

Bayan Jabbar Fayzulla, Mehmet Eroglu, Ahmet Erkliğ

{"title":"Effect of polyurethane matrix and steel fiber in combination with glass fiber or basalt fiber on the properties of hybrid composite laminates","authors":"Bayan Jabbar Fayzulla, Mehmet Eroglu, Ahmet Erkliğ","doi":"10.1515/mt-2023-0026","DOIUrl":"https://doi.org/10.1515/mt-2023-0026","url":null,"abstract":"Abstract Polyurethane is a versatile polymer with a high degree of toughness and ductility used in a wide variety of applications. In this study, two-part thermoset polyurethane was used as a matrix material to prepare hybrid and non-hybrid composites. Hybrid laminates were prepared by combining either glass fiber or basalt fibers with steel fibers. The mechanical properties of prepared composite specimens were characterized and scanning electron microscope (SEM) observation was performed around the fracture region of the tested specimens. The results revealed a significant increment in tensile strength, and flexural strength in BS 1 -PU (8 layers of basalt-1 layer of steel) hybrid laminate by 357.74 % and 64.59 %, respectively, compared to steel fibers reinforced polyurethane composites. Furthermore, GS 4 -PU hybrid composite (5 layers of glass-4 layers of steel) achieved an improvement in tensile strain by 12.07 %, flexural strain by 25.32 %, and absorbed energy by 18.21 %, compared to glass fibers reinforced polyurethane composite. Moreover, the SEM observations revealed that the replacement of some basalt and glass layers with steel layers leads to a positive hybridization effect of the overall produced hybrid composites.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135640969","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}

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Frontmatter 头版头条

4区材料科学

Materials Testing Pub Date : 2023-08-31 DOI: 10.1515/mt-2023-frontmatter9

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A19-saponin–modified polymethyl methacrylate base denture composites: antimicrobial, mechanical and water absorption potentials a19 -皂苷改性聚甲基丙烯酸甲酯基托复合材料:抗菌、机械和吸水电位

IF 2.5 4区材料科学

Materials Testing Pub Date : 2023-08-31 DOI: 10.1515/mt-2023-0017

T. O. Azeez, Grace Onyinyechi Iroh, Daniel Segun Odetunde, Amaka Tessy Egbuonu, P. Agbasi

{"title":"A19-saponin–modified polymethyl methacrylate base denture composites: antimicrobial, mechanical and water absorption potentials","authors":"T. O. Azeez, Grace Onyinyechi Iroh, Daniel Segun Odetunde, Amaka Tessy Egbuonu, P. Agbasi","doi":"10.1515/mt-2023-0017","DOIUrl":"https://doi.org/10.1515/mt-2023-0017","url":null,"abstract":"Abstract The increased growth of Candida albicans (C. albicans) with allergy reaction of MMA remains an issue of concern among denture wearers. C. albicans growth inhibition, mechanical and water absorption potentials of extracted A19-saponin–commingled PMMA denture base composites were investigated. Soxhlet extraction technique for defatting of Dialium guineense (D. guineense) stem powder was used with ethanol to extract A19-saponin. Fungicidal inhibition concentration of A19-saponin extract of D. guineense was determined. PMMA denture base was prepared with incorporation of A19-saponin at different concentrations of obtained 23.2 % yield. The mechanical and water absorption properties were determined. The minimum and maximum fungicidal inhibition concentrations and susceptibility of 25 and 100 % for extracted A19-saponin were obtained, respectively. PMMA, MMA and extracted A19-saponin of ratio of 30 g: 5 ml: 5 ml denture was optimally fabricated. A19-saponin increased the impact strength and hardness by 352.94 and 11.54 % with reduced water absorption by 82.85 %. Thus, A19-saponin as an additive improved quality of denture.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":"93 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73061582","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}

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Effect of bonding conditions on mechanical performance of DP600 steels at different ambient temperatures 不同环境温度下粘接条件对DP600钢力学性能的影响

IF 2.5 4区材料科学

Materials Testing Pub Date : 2023-08-28 DOI: 10.1515/mt-2023-0020

Oktay Çavuşoğlu, Işıl Bolova, Hakan Berk Aydın, A. Kara, Berna Güzeldağ, Haluk Dinkçi

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Bulge test technique and digital image correlation for the determination of the biaxial behavior of polymeric films 用膨胀试验技术和数字图像相关法测定聚合物薄膜的双轴性能

IF 2.5 4区材料科学

Materials Testing Pub Date : 2023-08-24 DOI: 10.1515/mt-2023-0139

F. Kharrat, Rania Chaari, M. Khlif, L. Hilliou, J. Covas, M. Haboussi, C. Bradai

{"title":"Bulge test technique and digital image correlation for the determination of the biaxial behavior of polymeric films","authors":"F. Kharrat, Rania Chaari, M. Khlif, L. Hilliou, J. Covas, M. Haboussi, C. Bradai","doi":"10.1515/mt-2023-0139","DOIUrl":"https://doi.org/10.1515/mt-2023-0139","url":null,"abstract":"Abstract Materials can display multiple mechanical behaviors when they are biaxially stressed. In this research work, films obtained through the blowing process were investigated in order to compare the mechanical properties and behavior of the film under uniaxial and biaxial stress conditions. Bulge test coupled with a continuous full-field strain measurement was undertaken in order to characterize polymeric film in a biaxial stress state. As far as this study is concerned, a laboratory-made pneumatic bulge test machine was used for the determination of the biaxial behavior of a 50 μm thickness PLSF (modified PLA) film. 3D-digital image correlation (3D-DIC) technique was used in order to compute the strain field continuously during the test. Tensile test was equally performed on the film along its machine direction (MD) and transverse direction (TD). Strain field distribution in the film sample was analyzed and compared in both tests. The tensile test results displayed an isotropic behavior of the film in both directions. However, a difference in the strain at break was noticed because of the thickness instability along the TD. The comparison between uniaxial and biaxial properties resulted in almost the same properties with respect to the Young Modulus as well as the tensile strength.","PeriodicalId":18231,"journal":{"name":"Materials Testing","volume":"15 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74933249","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