Computer Methods in Material Science最新文献_第2页

Multi-scale modeling of deposition and re-sputtering of NixTi1-x thin film in a magnetron sputtering chamber 磁控溅射室中NixTi1-x薄膜沉积和再溅射的多尺度建模

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2017.3.0606

A. Dey, S. Aich, Sudipto Ghosh, S. Mohapatra, A. Kumar, A. Behera

{"title":"Multi-scale modeling of deposition and re-sputtering of NixTi1-x thin film in a magnetron sputtering chamber","authors":"A. Dey, S. Aich, Sudipto Ghosh, S. Mohapatra, A. Kumar, A. Behera","doi":"10.7494/cmms.2017.3.0606","DOIUrl":"https://doi.org/10.7494/cmms.2017.3.0606","url":null,"abstract":"Deposition and re-sputtering of Ni-Ti thin films by magnetron sputtering was simulated using a multi-scale modeling approach. The sputtering of Ni and Ti targets and the transport of sputtered Ni and Ti atoms through the background gas were simulated using a Monte-Carlo approach, while the deposition of the sputtered atom onto the film surface was analyzed using molecular dynamics. The interaction of Ar+ ions with the deposited film under the influence of substrate bias was also simulated using a Monte-Carlo approach. The distribution of sputtered atoms over the substrate and the fraction of total sputtered atoms from Ni and Ti targets that reached the substrate were calculated for an off centred target which made an angle of 30° with the substrate. The effects of target voltage and gas temperature on the distribution of sputtered atom over substrate were studied with the help of the aforesaid simulations. It was observed that with increasing target voltage, the fraction of sputtered atoms reaching the substrate was increased slightly for a pure Ni target, while it showed very little change for a pure Ti target. With increasing gas temperature, the value for the same decreased initially, but increased beyond a critical temperature. The velocities of incident Ni and Ti atoms on the substrate were calculated and it was found that no intrinsic re-sputtering could take place for a Ni0.5Ti0.5 thin film under the simulated conditions. The fraction of deposited atoms that were re-sputtered by Ar+ ions under varying substrate bias was also calculated and was found to increase substantially with the increase in the magnitude of the substrate bias voltage. Finally, the stability of crystalline and amorphous Ni and Ti were estimated on the basis of fraction of atoms re-sputtered using a classical molecular dynamics approach.","PeriodicalId":401877,"journal":{"name":"Computer Methods in Material Science","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124584403","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

Perceptive review of augmented reality applications and their outlooks in the forging industry 增强现实技术在锻造行业的应用与展望

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2020.2.0656

M. Sitko, Bartłomiej Wesołowski, Jacek Adamus, Ł. Lisiecki, Klaudia Piotrowska-Madej, L. Madej

引用次数: 1

Application of the immune algorithm IRM for solving the inverse problem of metal alloy solidification including the shrinkage phenomenon 应用免疫算法IRM求解含收缩现象的金属合金凝固反问题

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2018.1.0608

A. Zielonka, E. Hetmaniok, Damian� S�ota

引用次数: 2

Digital Image Correlation (DIC) system as a verification tool for constitutive models of deformation with complex strain path changes 数字图像相关(DIC)系统作为复杂应变路径变化变形本构模型的验证工具

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2016.1.0559

P. Graca, K. Muszka, J. Majta, K. Perzyński

{"title":"Digital Image Correlation (DIC) system as a verification tool for constitutive models of deformation with complex strain path changes","authors":"P. Graca, K. Muszka, J. Majta, K. Perzyński","doi":"10.7494/cmms.2016.1.0559","DOIUrl":"https://doi.org/10.7494/cmms.2016.1.0559","url":null,"abstract":"Effects of the strain path changes that occur during metal forming have been the subject of theoretical and experimental studies in the light of deformation inhomogeneities. Modern multiphase steels were used as their mechanical properties are very sensitive and strictly dependent on the combination of microstructure components with different levels of their mechanical responses. DIC as a precision tool has been used to investigate the deformation inhomogeneity during the tensile tests of specimens previously deformed with complex strain path history. The study was focused on the combined metal forming processes (i.e. Accumulated Angular Drawing (AAD), Wire Drawing (WD) and Wire Flattening (WF)). These processes are characterised by a combination of various deformation mechanisms (area reduction, torsion, bending, burnishing), and thus, are strongly affected by nonlinear strain path changes. Then, data provided in the experimental part of the work was used to assess the existing constitutive equations in the light of their applicability for the prediction of mechanical response of materials subjected to nonlinear loading conditions. In the numerical analysis, work hardening model (i.e. Chaboche model) was investigated. The results of computer simulation were then compared with the DIC measurements and conclusions regarding applicability of the proposed approach were drawn.","PeriodicalId":401877,"journal":{"name":"Computer Methods in Material Science","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116137221","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: 2

FEM analysis of working conditions on the stress and strain of low-capacity disc granulator frames 小容量圆盘造粒机机架应力应变工况有限元分析

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2020.2.0654

M. Bembenek, Karol Jankowicz

引用次数: 0

Evaluation of efficient computational work division in parallel Monte Carlo grain growth algorithm. 并行蒙特卡罗晶粒生长算法中高效计算工作划分的评价。

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2016.3.0579

M. Sitko, Ł. Madej

引用次数: 1

The effect of the assumed thermophysical properties of steel on the heat transfer calculation result in contact phenomena 假定的钢的热物理性质对传热计算的影响导致了接触现象

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2020.4.0738

M. Rywotycki, Z. Malinowski, Aleksandra Przyłucka, K. Sołek

引用次数: 0

Application of Industry 4.0 mechanisms in medicine on the example of an integrated support system for treatment of Obstructive Sleep Apnea (OSA) 工业4.0机制在医学中的应用——以综合支持系统治疗阻塞性睡眠呼吸暂停(OSA)为例

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2017.4.0604

Barbara Mrzyg��d, Andrzej Opali�ski, K. Regulski, Miros�aw G�owacki, A. Kania, Gra�yna Bochenek, Pawe� Nasta�ek, Natalia Celejewska-W�jcik, Krzysztof S�adek

{"title":"Application of Industry 4.0 mechanisms in medicine on the example of an integrated support system for treatment of Obstructive Sleep Apnea (OSA)","authors":"Barbara Mrzyg��d, Andrzej Opali�ski, K. Regulski, Miros�aw G�owacki, A. Kania, Gra�yna Bochenek, Pawe� Nasta�ek, Natalia Celejewska-W�jcik, Krzysztof S�adek","doi":"10.7494/cmms.2017.4.0604","DOIUrl":"https://doi.org/10.7494/cmms.2017.4.0604","url":null,"abstract":"The concept of the 4th Industrial Revolution and the concept of Industry 4.0 are beginning to emerge in many areas of human life and are no longer the domain of the manufacturing industry. Medicine is a special area in which the development of new technologies should bring new opportunities for the diagnosis and treatment of people, as well as the management of medical resources. The paper presents a system for the integration of heterogeneous data sources in the domain of Obstructive Sleep Apnea (OSA). The concept of the system is described along with its main functionalities, IT architecture and details of the implementation. The data sources and the methods of data acquisition from medical devices integrated with the system are also characterized. The main goal of the system is to facilitate patient�s diagnosis and treatment process by integrating the results of the performed medical examinations and analyses. The data source contains clinical interviews, physical examinations, lab tests, and data collected from the devices used to diagnose and monitor patient�s parameters during sleep (PSG, CPAP).�","PeriodicalId":401877,"journal":{"name":"Computer Methods in Material Science","volume":"52 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131604505","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

Strategy for the selection of the best phase transformation model for simulation of metals processing 金属加工模拟中最佳相变模型的选择策略

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2016.4.0592

Ł. Rauch, K. Bzowski, K. Perzyński, Ł. Madej, A. Milenin, M. Pietrzyk

引用次数: 4

Sedimentation in binary Cu-Sn system 铜锡二元体系中的沉积作用

Computer Methods in Material Science Pub Date : 1900-01-01 DOI: 10.7494/cmms.2018.4.0620

D. Serafin, W. Nowak, B. Wierzba

引用次数: 0