Journal of Engineering Materials and Technology-transactions of The Asme最新文献_第4页

A Quantitative Representation of Damage and Failure Response of 3D Textile SiC/SiC Ceramics Matrix Composites Subjected to Flexural Loading 三维纺织SiC/SiC陶瓷基复合材料在弯曲载荷作用下损伤和失效响应的定量表征

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-12-06 DOI: 10.1115/1.4056414

Zhengmao Yang, Keji Pang, X. Lei, Qing Hu

{"title":"A Quantitative Representation of Damage and Failure Response of 3D Textile SiC/SiC Ceramics Matrix Composites Subjected to Flexural Loading","authors":"Zhengmao Yang, Keji Pang, X. Lei, Qing Hu","doi":"10.1115/1.4056414","DOIUrl":"https://doi.org/10.1115/1.4056414","url":null,"abstract":"\u0000 In the present work, the microstructure deformation and synergetic damage evolution of a three-dimensional textile SiC/SiC ceramic-matrix composites under flexural loading, has been investigated by in situ digital image correlation at ambient temperatures. With the flexural loading increases, matrix cracking occurs on the tensile side initially, and the local stress concentration leads to matrix cracking, interlayer debonding and fiber breakage on the compressive side of materials. Different from traditional 2D braided composite, when matrix fracture occurs, a matrix crack propagates in matrix enrichment regions perpendicular to fiber tows, with local deflection near the fiber/matrix interface surfaces, its propagation is diffused into sinuous fractures, and finally present a H-shaped path feature. This processes dissipate strain energy, resulting in enhancing composites fracture toughness. By using continuum damage mechanics and thermodynamic framework with synergetic effects of microstructure, asymmetric tension and compression load on both sides of the material, the flexural loading-induced damage is characterized by the reduction of the macroscopic effective elastic modulus, and a synergetic damage evolution model is established, which reveals the relationship between energy release rate and elastic modulus degradation, and can be used to predict the flexural stress-strain curves of the 3D textile SiC/SiC composites, further to improve the design and assessment of new textile architecture with specific mechanical properties.","PeriodicalId":15700,"journal":{"name":"Journal of Engineering Materials and Technology-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47230941","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

Research on Strengthening Mechanism of Rare Earth Cemented Carbide Tool Material 稀土硬质合金刀具材料的强化机理研究

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-11-17 DOI: 10.1115/1.4056278

Zhaopeng Hao, Yuan-gen Qiu, Yihang Fan

引用次数: 1

Influence of the Geometric Parameters on the Fiber Stresses in Unidirectional Composites Subject to Transverse Loading 几何参数对单向复合材料横向加载纤维应力的影响

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-11-08 DOI: 10.1115/1.4056179

Challa Geetha Krishna, Yash Anup Vora, Ishan Manoj, Tushar M. Patle, Atul Jain

引用次数: 1

The Effect of Strain Rate on the Hydrogen Embrittlement Susceptibility of Aluminum 7075 应变速率对铝7075氢脆敏感性的影响

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-11-03 DOI: 10.1115/1.4056158

Mehmet Furkan Baltacioglu, B. Çetin, B. Bal

{"title":"The Effect of Strain Rate on the Hydrogen Embrittlement Susceptibility of Aluminum 7075","authors":"Mehmet Furkan Baltacioglu, B. Çetin, B. Bal","doi":"10.1115/1.4056158","DOIUrl":"https://doi.org/10.1115/1.4056158","url":null,"abstract":"\u0000 The effects of changing strain rate regime from quasi-static to medium on hydrogen susceptibility of aluminum (Al) 7075 were investigated by means of tensile tests. Strain rates were selected as 10−3 s−1 and 1 s−1 and tensile tests were conducted on both hydrogen uncharged and hydrogen charged specimens at room temperature. Electrochemical hydrogen charging method was utilized and diffusion length of hydrogen inside Al 7075 was modeled. Material characterizations were carried out by X-ray diffraction (XRD) and energy dispersive X-Ray spectroscopy (EDX) and microstructural observations of hydrogen uncharged and hydrogen charged specimens were performed by scanning electron microscope (SEM). As opposed to previous studies hydrogen embrittlement was more pronounced at high strain rate case. Moreover, hydrogen enhanced localized plasticity was the more dominant hydrogen embrittlement mechanism at slower strain rate but coexistence of hydrogen enhanced localized plasticity and hydrogen enhanced decohesion was observed at a medium strain rate. Overall, the current findings shed light on the complicated hydrogen embrittlement behavior of Al 7075 and constitute an efficient guideline for the usage of Al 7075 that can be subject to different strain rate loadings in service.","PeriodicalId":15700,"journal":{"name":"Journal of Engineering Materials and Technology-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47289794","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: 3

A Unique Method to Determine Ferrite and Martensite Phase Stress Strain Curve for Manufacturing Process 一种确定制造过程中铁素体和马氏体相应力应变曲线的独特方法

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-10-20 DOI: 10.1115/1.4056033

Silvie M Tanu Halim, E. Ng

{"title":"A Unique Method to Determine Ferrite and Martensite Phase Stress Strain Curve for Manufacturing Process","authors":"Silvie M Tanu Halim, E. Ng","doi":"10.1115/1.4056033","DOIUrl":"https://doi.org/10.1115/1.4056033","url":null,"abstract":"\u0000 Finite element (FE) methods have been extensively used to simulate the effects of material's microstructure during the machining processes. However, determination of the individual microstructure phase stress strain curves is experimentally intensive and difficult to measure. Furthermore, these curves were also affected by heat treatment processes, chemical composition, and the percentage of individual microstructure phases. The objective of this paper is to develop and validate the Micromechanical Adaptive Iteration Algorithm to calculate the individual ferrite and martensite plastic behavior for dual phase (DP) steel. This method requires a minimum of three experimental stress-strain curves from the same material with three different martensite volume fractions (Vm). Two of the stress-strain curves with different Vm is required to initialize the iteration algorithm to predict the individual plastic behavior of ferrite and martensite. The third stress strain curve was used to validate the plastic behavior of individual ferrite and martensite for the given DP steel. Following on from here, the proposed algorithm was validated with two different grades of DP steel with 0.088%C and 0.1%C. Validation results shows that the approach has consistent prediction capabilities and the maximum difference observed between predicted and experimental results was 6.5%. The simulated results also shows that the degree of strain partitioning between ferrite and martensite decreases with increasing volumetric fraction of martensite (Vm).","PeriodicalId":15700,"journal":{"name":"Journal of Engineering Materials and Technology-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43832810","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

Large Deflections of Functionally Graded Non-Linearly Elastic Cantilever Beams 功能梯度非线性弹性悬臂梁的大挠度

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-10-20 DOI: 10.1115/1.4056034

Ayhan Hacioglu, Adem Candaş, C. Baykara

引用次数: 2

Effect of Vanadium on the Microstructure, Transformation Temperatures and Corrosion Behaviour of NiTi Shape Memory Alloys 钒对NiTi形状记忆合金组织、转变温度和腐蚀行为的影响

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-10-07 DOI: 10.1115/1.4055910

S. Sampath, Sampath Vedamanickam

{"title":"Effect of Vanadium on the Microstructure, Transformation Temperatures and Corrosion Behaviour of NiTi Shape Memory Alloys","authors":"S. Sampath, Sampath Vedamanickam","doi":"10.1115/1.4055910","DOIUrl":"https://doi.org/10.1115/1.4055910","url":null,"abstract":"\u0000 Ni50Ti50-xVx (x = 0,1,2,3 at. %) shape memory alloys were prepared by vacuum induction melting. They were homogenized and then hot rolled. CHNOS and XRD analyses were carried out on the alloys to find out the oxygen and carbon contents and the phases present in the alloys. Transformation temperatures, determined by differential scanning calorimetry indicate that addition of vanadium reduces the transformation temperatures. Corrosion studies were carried out in Hanks’ solution, while potentiodynamic polarization tests were done to calculate the rate of corrosion of the alloys. Two significant parameters were analyzed from Tafel graph, namely, corrosion rate and corrosion potential. A comparison of these properties of the alloys was also made with commercially pure titanium and binary NiTi alloys. Among the NiTiV alloys, Ni50Ti47V3 (at.%) alloy was found to undergo the least rate of corrosion. With increasing vanadium content, the rate of corrosion was found to decrease. SEM analysis of the corroded surface shows that pitting was the main mechanism of corrosion in these alloys. Results show that addition of V to NiTi has a positive effect on the corrosion properties of the alloys. Elaborate results are discussed in detail in the paper.","PeriodicalId":15700,"journal":{"name":"Journal of Engineering Materials and Technology-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43243529","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: 7

Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints 预热对低碳钢搅拌摩擦焊接接头组织和力学性能的影响

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-10-07 DOI: 10.1115/1.4055909

Seyed Mehrdad Yamani, S. Raja, Mohammad Ashraf Bin Ariffin, Mohammad Syahid Mohd Isa, M. Muhamad, M. F. Jamaludin, F. Yusof, Muhammad Khairi Faiz Bin Ahmad Hairuddin

{"title":"Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints","authors":"Seyed Mehrdad Yamani, S. Raja, Mohammad Ashraf Bin Ariffin, Mohammad Syahid Mohd Isa, M. Muhamad, M. F. Jamaludin, F. Yusof, Muhammad Khairi Faiz Bin Ahmad Hairuddin","doi":"10.1115/1.4055909","DOIUrl":"https://doi.org/10.1115/1.4055909","url":null,"abstract":"\u0000 Friction stir welding of a low carbon steel plate having thickness 0.5 mm was performed with preheating the base material to increase the joining performance. The rotational speed of the tool was set from 1500 to 2000 rpm with a constant travel speed of 15 mm/min and preheating temperatures of 50 to 150 °C. The tensile strength of 340 MPa was achieved for the preheated specimen compared to 310 MPa for the non-preheating specimen at the welding speed of 15 mm/min. Electron microscope images of the preheated joint revealed plasticised material flow and dynamic recrystallisation, which resulted in the grain refinement that had increased the joining strength. The weld thinning issue was almost eliminated in the preheated welded specimen. However, by increasing the preheat temperature further, the tensile strength decreases due to the formation of defects from excessive heat. The preheated sample fractured at the base metal, revealing a ductile fracture mode.","PeriodicalId":15700,"journal":{"name":"Journal of Engineering Materials and Technology-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41410695","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

The Mechanism of Slip System Activation with Grain Rotation During Superplastic Forming 超塑性成形过程中晶粒旋转激活滑移体系的机理

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-09-26 DOI: 10.1115/1.4055779

Junzhou Yang, J.J. Wu, Zhiguo Li, H. Xie, Zongcai Zhang, Mengyuan Wang

{"title":"The Mechanism of Slip System Activation with Grain Rotation During Superplastic Forming","authors":"Junzhou Yang, J.J. Wu, Zhiguo Li, H. Xie, Zongcai Zhang, Mengyuan Wang","doi":"10.1115/1.4055779","DOIUrl":"https://doi.org/10.1115/1.4055779","url":null,"abstract":"\u0000 The activated slip system of Ti-6Al-4V alloy during the superplastic forming (SPF) was investigated by the in-grain misorientation axes analysis (IGMA), and the mechanisms of slip model activation have been discussed. Depending on the distribution of IGMA, one significant discovery from this study is that all the basal, prismatic, and pyramidal slip systems would be activated. Considering the effective slip models, Schmid factors, and the Euler angles together, it is suggested that the dominant slip systems not only desired the largest Schmid factors but strongly demand continuous Schmid factors among the adjacent grains. Meanwhile, the estimated critical resolved shear stress (CRSS) on basal<a> and prismatic<a> at the temperature of 920°C with the strain rate of 10−3/s is given. An original method of roughly estimating dominant slip models with Euler angles has been introduced, which predicts that grain rotation may change the slip model. Furthermore, Crystal Plasticity Finite Element Method (CPFEM) is employed to simulate the evolution of Euler angles, and the grain orientation presents the largest set of significant clusters around the (1 100) after deformation. Besides, the continuity of the Schmid factor assumption for the activated slip model has also been verified by CPFEM. In addition, the eigenvector corresponding to the eigenvalue λ1=1 of Euler angle rotation matrix is calculated to be aligned with the grain rotation axis, which can be applied to describe the grain rotation.","PeriodicalId":15700,"journal":{"name":"Journal of Engineering Materials and Technology-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45132724","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

Thermo-Mechanical Properties of Carbon Nanotube Yarns with High Energy Dissipation Capabilities 高耗能碳纳米管纱的热机械性能

IF 1.2 4区材料科学

Journal of Engineering Materials and Technology-transactions of The Asme Pub Date : 2022-09-08 DOI: 10.1115/1.4055540

César Pérez, Raúl Pech, Hugo Carrillo, Gabriela Uribe, Francis Aviles-Cetina

{"title":"Thermo-Mechanical Properties of Carbon Nanotube Yarns with High Energy Dissipation Capabilities","authors":"César Pérez, Raúl Pech, Hugo Carrillo, Gabriela Uribe, Francis Aviles-Cetina","doi":"10.1115/1.4055540","DOIUrl":"https://doi.org/10.1115/1.4055540","url":null,"abstract":"\u0000 Carbon nanotube yarns (CNTYs) are porous hierarchical fibers which exhibit a strong property-structure relationship. The morphology and structure of dry-spun CNTYs are characterized and correlated with their quasi-static and dynamic mechanical properties. These characterizations include assessment of the CNTY homogeneity by means of Raman spectroscopy mapping, determination of linear density and porosity, atomic force microscopy, and dedicated measurements of the statistical distribution of the yarn's diameter. Tensile testing CNTY yields a specific strength of 0.21–0.34 N/tex, and a specific elastic modulus of 3.59–8.06 N/tex, depending on the gage length. While the strength is weakly sensitive to the gage length, the elastic modulus depends on the gage length. The importance of subtracting the machine compliance for determination of CNTY's elastic modulus is highlighted, since the error can reach up to 28%. Dynamic mechanical analysis shows that the CNTY is a stiff material with an extraordinary high damping ratio, which increases with temperature and reach ~0.6 at 60 °C. In addition, the CNTY presents a frequency-stiffening behavior in the 18–48 Hz range, with storage modulus and loss modulus which increase ~2.5 times and ~7 times, respectively, at 48 Hz.","PeriodicalId":15700,"journal":{"name":"Journal of Engineering Materials and Technology-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42181051","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: 4