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Materials Testing-Materials and Components Technology and Application最新文献

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Effect of ball-burnishing parameters on surface roughness and surface hardness of aluminum alloy 6013 球磨参数对6013铝合金表面粗糙度和表面硬度的影响
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111169
B. B. Buldum, Burhan Bayhan
{"title":"Effect of ball-burnishing parameters on surface roughness and surface hardness of aluminum alloy 6013","authors":"B. B. Buldum, Burhan Bayhan","doi":"10.3139/120.111169","DOIUrl":"https://doi.org/10.3139/120.111169","url":null,"abstract":"Abstract Burnishing, or the chipless finishing process, can be effectively utilized in order to improve the surface roughness and surface hardness of a workpiece. This paper focuses on the effect of ball-burnishing parameters (burnishing speed, burnishing force, burnishing feed and number of passes) on the surface roughness and hardness of aluminum alloy 6013. The Taguchi method was utilized to specify the most influential parameters for surface roughness and surface hardness. In this study, the optimum ball-burnishing parameters for surface roughness were obtained for a single number of passes, a burnishing force of 150 N, a burnishing speed of 200 rpm and a feed rate of 0.1 mm × min−1. By contrast, the optimum ball-burnishing parameters for surface hardness were also obtained for a single number of passes, a burnishing force of 150 N, a burnishing speed of 400 rpm and a feed rate of 0.25 mm × min−1.","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125788607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Properties and optimization of friction stir spot welded aluminum alloy 3003-H14 3003-H14搅拌摩擦点焊铝合金的性能及优化
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111159
E. Taban, Duygu Gun, E. Kaluç, K. Baynal
{"title":"Properties and optimization of friction stir spot welded aluminum alloy 3003-H14","authors":"E. Taban, Duygu Gun, E. Kaluç, K. Baynal","doi":"10.3139/120.111159","DOIUrl":"https://doi.org/10.3139/120.111159","url":null,"abstract":"Abstract The lightweighting potential in modern manufacturing has been enhanced via the emergence of novel friction stir spot welding approaches by eliminating the conventional joining challenges of aluminum alloys. Optimizing the tool profile of friction stir spot welded joints is thus essential due to the direct controlling influence of tool morphology on material flow, bonding and weld quality. Therefore, this study examines the optimization of friction stir spot welded 1 mm thick 3003-H14 wrought aluminum alloy, by using a cylindrically threaded pin tool morphology and the Taguchi optimization methodology. Tool rotational speed, plunge depth and dwell time are utilized as welding parameters, while maximum shear failure load is employed as the response in this study. Analysis of variance (ANOVA) is employed to systematically investigate the main effect and interaction effect of welding parameters on weld performance. A maximum shear failure load of 2530 N was attained at a parameter combination of 1.50...","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128397043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, growth and characterization of a glycine potassium dichromate (GPDC) single crystal 甘氨酸重铬酸钾单晶的合成、生长和表征
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111170
P. S. Kannan, S. Sagadevan
{"title":"Synthesis, growth and characterization of a glycine potassium dichromate (GPDC) single crystal","authors":"P. S. Kannan, S. Sagadevan","doi":"10.3139/120.111170","DOIUrl":"https://doi.org/10.3139/120.111170","url":null,"abstract":"Abstract Some organic materials develop great importance thanks to nonlinear properties and are found to be more suitable for device applications. The present study focuses on the growth and charac...","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132944257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radiographic inspection of AISI 420 steel friction welds AISI 420钢摩擦焊缝的射线照相检验
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111161
Nida Katı, V. Çay, S. Ozan, U. Caligulu, M. Türkmen
{"title":"Radiographic inspection of AISI 420 steel friction welds","authors":"Nida Katı, V. Çay, S. Ozan, U. Caligulu, M. Türkmen","doi":"10.3139/120.111161","DOIUrl":"https://doi.org/10.3139/120.111161","url":null,"abstract":"Abstract In this study, X-ray radiographic tests of AISI 420 steel welded by friction welding were studied. During the welding process, three different rotations, 700, 1000 and 1300, were employed while the other parameters such as friction pressure, friction time, upsetting-pressure and upsetting-duration were unchanged. After the completion of welding process, the welded joints were subjected to radiographic tests by X-raydiffraction. The result of the radiographic tests indicates that by increasing rotation speed the amount of flash and joining properties/performance increases in all samples. The best properties of the AISI 420 martensitic stainless steel joints were observed in samples welded at a rotation speed of 1300 (rpm). It has been determined that in harmony with the definition of welding defects and respective radiographic images, lack of fusion is the most common welding defect.","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129180832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improved methods to determine the elastic modulus and area reduction rate in spherical indentation tests 改进了球面压痕试验中弹性模量和面积收缩率的测定方法
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111157
Tairui Zhang, Shang Wang, Weiqiang Wang
{"title":"Improved methods to determine the elastic modulus and area reduction rate in spherical indentation tests","authors":"Tairui Zhang, Shang Wang, Weiqiang Wang","doi":"10.3139/120.111157","DOIUrl":"https://doi.org/10.3139/120.111157","url":null,"abstract":"Abstract In this study, a revised elastic modulus calculation model which takes into account the plastic deformation in spherical indentation tests was proposed and the reliability of the model after revision was proved by experiments on eight metals. This showed that the maximum error of elastic modulus values using the revised model was less than 5 % while the average error was more than 30 % using the original model. In addition, the correlation between the number of voids and the reduction in elastic modulus values was analyzed to verify the reasonability of judging material damage through elastic modulus reduction. A comparison of the plasticity index in indentation tests (critical indentation depth) with the plasticity index in uniaxial tensile tests (area reduction rate), a method, based on continuous damage mechanics, to determine the area reduction rate from spherical indentation tests, was also provided.","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116201787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
In situ analysis utilizing electrical resistance measurements when brazing cemented carbides 在钎焊硬质合金时利用电阻测量进行现场分析
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111165
W. Tillmann, N. Sievers, A. Schmidt, C. Timmer
{"title":"In situ analysis utilizing electrical resistance measurements when brazing cemented carbides","authors":"W. Tillmann, N. Sievers, A. Schmidt, C. Timmer","doi":"10.3139/120.111165","DOIUrl":"https://doi.org/10.3139/120.111165","url":null,"abstract":"Abstract Usually it is not possible to observe a high temperature brazing process such as joining cemented carbides to steel with copper as filler metal. The process takes place in a vacuum chamber at high temperatures and an analysis of the joint formed is only possible in a subsequent step. In this investigation, a novel setup has been introduced to allow for an in situ measurement of the brazing process via its electrical resistance. For this, a 4wiretechnique has been applied to the specimen to precisely measure the low resistance of the joint within a range of µΩ. By choosing two different holding times at a process temperature of 1150 °C and by analyzing the ensuing joint structures, it was possible to correlate the signal measured with the on-going diffusion and bonding process. Finally, the authors have revealed that the applied current of the measurement system had a distinct effect on the joint structure formed, which could be used additionally to improve the quality of the joint.","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131264063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fracture mechanics testing and crack growth simulation of highly ductile austenitic steel 高延性奥氏体钢断裂力学试验及裂纹扩展模拟
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111156
Andreas Burgold, S. Henkel, S. Roth, M. Kuna, H. Biermann
{"title":"Fracture mechanics testing and crack growth simulation of highly ductile austenitic steel","authors":"Andreas Burgold, S. Henkel, S. Roth, M. Kuna, H. Biermann","doi":"10.3139/120.111156","DOIUrl":"https://doi.org/10.3139/120.111156","url":null,"abstract":"Abstract The present contribution deals with ductile austenitic cast steel. CT-specimens are cut out of cast plates and tested under monotonic and quasi-static conditions. Good ductility, high work hardening and restricted specimen dimensions complicate the fracture mechanical characterization of the material and regular fracture toughness values cannot be determined. Crack tip opening displacement (CTOD) and crack extension are measured optically. Force-displacement data and crack growth resistance curves have been gleaned from the experiments. A cohesive zone model has been utilized to simulate the fracture event (crack initiation and propagation). The results of these simulations have been compared with experimental data. The aim is to determine the cohesive parameters as these can be related to fracture toughness. The transferability of these parameters to specimens of greater thickness remains an open question.","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126128398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Mechanical properties of PE/E-glass commingled yarn wound pipes and pipe elbows PE/ e -玻璃混纺纱缠绕管及弯管的力学性能
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111162
A. Bekem, A. Ünal
{"title":"Mechanical properties of PE/E-glass commingled yarn wound pipes and pipe elbows","authors":"A. Bekem, A. Ünal","doi":"10.3139/120.111162","DOIUrl":"https://doi.org/10.3139/120.111162","url":null,"abstract":"Abstract PE pipes and fittings are used in water, chemicals, as well as gas supply and distribution. In most applications, pressurized piping systems are needed. When pressure grade is increased, p...","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126672682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanical behavior of mode-I crack propagation between composite adhesive joints 复合材料粘接缝间i型裂纹扩展力学行为
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111166
İ. Y. Sülü
{"title":"Mechanical behavior of mode-I crack propagation between composite adhesive joints","authors":"İ. Y. Sülü","doi":"10.3139/120.111166","DOIUrl":"https://doi.org/10.3139/120.111166","url":null,"abstract":"Abstract Failure testing and an analysis of mode-I crack propagation between composite parts joint with adhesive was the object of this investigation. We offer a finite element analysis (FEA) for calculating failure loads when simulating crack growth between three-dimensional composite parts joint with adhesive as well as an analysis of the effect of crack length on adhesive joint performance. Likewise, we have examined the effects of orientation angles on crack length and failure load. For this analysis, composite parts are made of carbon/epoxy (AS4/3501-6) with different fiber orientation angles. DP 410 was the adhesive used. The models for the numerical analyses were generated by using an ANSYS software package. The finite element analyses were carried out in order to predict failure loads. Stress at x, y, z directions, shear stress and von-Mises stress on adhesive were obtained at the time of failure for predetermined parameters. Lastly, we examined the effects of orientation angles, crack length, and...","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133533754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Stress distribution in a femoral implant with and without bone cement and at different inclination angles 股骨内固定物有骨水泥和无骨水泥及不同倾斜角度下的应力分布
Materials Testing-Materials and Components Technology and Application Pub Date : 2018-04-04 DOI: 10.3139/120.111163
M. Y. Solmaz, Ismail Hakki Sanliturk, A. Turgut, S. Dundar, Tolga Topkaya
{"title":"Stress distribution in a femoral implant with and without bone cement and at different inclination angles","authors":"M. Y. Solmaz, Ismail Hakki Sanliturk, A. Turgut, S. Dundar, Tolga Topkaya","doi":"10.3139/120.111163","DOIUrl":"https://doi.org/10.3139/120.111163","url":null,"abstract":"Abstract The purpose of this study was to investigate numerically the effects of the inclination (collodiaphyseal) angle and bone cement (polymethylmethacrylate) filling on the stress distribution of human femurs and implants after the implementation of a partial endoprotez arthroplasty. Ti6Al4V, which is the most commonly used implant material, was choosen for this study. In the numerical study, solid models of implants and femurs were created using the SolidWorks 2010 package program, then stress analyses were carried out at five different inclination angles, 120°, 125°, 130°, 135° and 140°, with and without bone cement (polymethylmethacrylate), using the ANSYS Workbench 12.0 package program. The anteversion angle was assumed to be 12.5° for all models. As a result of the increase in the inclination angle and the addition of bone cement, it was determined that the stress values of the femurs and implants were reduced. Within the limitations of this study it has been shown that parameters like bone cemen...","PeriodicalId":351153,"journal":{"name":"Materials Testing-Materials and Components Technology and Application","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131950669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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