IOP Conference Series: Materials Science and Engineering最新文献_第6页

Multiscale characterization of the additive-manufacturing-induced cell structure in 316L stainless steel: A comparative study 316L 不锈钢中添加剂制造诱导的细胞结构的多尺度表征：比较研究

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012034

X Wang, V K Nadimpalli, D Juul Jensen, T Yu

引用次数: 0

Applying lab-based DCT to reveal and quantify the 3D grain structure of a miniature chess rook produced by binder jetting 应用基于实验室的 DCT 技术揭示和量化通过粘合剂喷射生产的微型国际象棋棋子的三维晶粒结构

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012029

J Sun, F Bachmann, J Oddershede, E Lauridsen

引用次数: 0

An Image-Driven Machine Learning Method for Microstructure Characterization in Metal Additive Manufacturing: Generative Adversarial Network 用于金属增材制造微结构表征的图像驱动机器学习方法：生成式对抗网络

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012015

Z Cao, Y Liu, J J Kruzic, X Li

引用次数: 0

Building microstructures by welding millions of little bits of metal together: measurement approaches, model validation, and post-build processing 通过将数百万个金属小块焊接在一起构建微结构：测量方法、模型验证和构建后处理

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012011

L E Levine, E J Schwalbach, F Zhang

{"title":"Building microstructures by welding millions of little bits of metal together: measurement approaches, model validation, and post-build processing","authors":"L E Levine, E J Schwalbach, F Zhang","doi":"10.1088/1757-899x/1310/1/012011","DOIUrl":"https://doi.org/10.1088/1757-899x/1310/1/012011","url":null,"abstract":"Over the past decade, immense, world-wide research and development efforts have attempted to bring additive manufacturing (AM) of metals into broad industrial use. Although major advances in our understanding and control over metal AM have accrued, its practical application has been underwhelming. The slow pace of commercial adoption can be traced to numerous factors, including poor build reproducibility, sensitivity to heterogeneous local processing conditions during the build, complications in developing and validating suitable processing-structure-property-performance (PSPP) simulation capabilities (physics-based models, surrogate models, and machine learning models), the small number of alloys suitable for metal AM, and the need for developing new alloy-specific post-processing protocols. All these factors negatively impact the purely business decision of what manufacturing approach should be used to produce a given component. Computational materials engineering approaches could play a major role in accelerating the adoption of metal AM, but rigorous model validation will be necessary to make this a reality. Here, discussion will focus on development and deployment of measurement approaches for model validation, and methodologies for accelerating development of post-build heat treatment through thermo-kinetic modelling and in situ measurements.","PeriodicalId":14483,"journal":{"name":"IOP Conference Series: Materials Science and Engineering","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187465","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

A convergence study simulating regular waves using the k-ω SST turbulence model in OpenFOAM® 利用 OpenFOAM® 中的 k-ω SST 湍流模型模拟规则波的收敛性研究

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1312/1/012006

Xihang Xu, Md Salauddin, Jennifer Keenahan

{"title":"A convergence study simulating regular waves using the k-ω SST turbulence model in OpenFOAM®","authors":"Xihang Xu, Md Salauddin, Jennifer Keenahan","doi":"10.1088/1757-899x/1312/1/012006","DOIUrl":"https://doi.org/10.1088/1757-899x/1312/1/012006","url":null,"abstract":"OpenFOAM® has been widely used in coastal engineering to visualise and analyse wave-structure interaction and evaluate the effectiveness of innovative coastal protection structures. To study the influence of an eco-retrofitted seawall on the wave overtopping process, a 2D numerical wave tank with a k-ω SST turbulence model is developed to recreate previously completed experiments. Results of wave structure interactions at a plain vertical seawall subjected to regular waves using OpenFOAM® are presented, considering various configurations of time steps and grid resolutions. Both deep water (near the wave maker) and shallow water (near the structure) wave structure interactions are analysed. Results indicate that a finer mesh density is required in shallow water regions compared with deep water regions due to the dynamics of the wave-breaking process in the wave reflection area. Results also indicate that mesh density has a more significant influence than the time step. Overall, this paper showcases the entire process of establishing two-phase flow CFD (computational fluid dynamics) simulations in OpenFOAM® and provides a reference model for future research on studying the effectiveness of eco-retrofitting approaches on wave attenuation.","PeriodicalId":14483,"journal":{"name":"IOP Conference Series: Materials Science and Engineering","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142187342","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

Elucidating the impact of laser beam shape on the as-printed microstructure in 316L stainless steel 阐明激光束形状对 316L 不锈钢中的压印微观结构的影响

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012040

W E Alphonso, M A Ribeiro, R Rothfelder, M Schmidt, J H Hattel, D Juul Jensen, M Bayat

引用次数: 0

Vertical axis turbine simulations based on sliding and overset meshes 基于滑动和超集网格的垂直轴涡轮机模拟

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1312/1/012010

Asmelash Haftu Amaha, Shivasubramanian Gopalakrishnan, Prabhu Ramachandran, Joel Guerrero

引用次数: 0

Influence of print-chamber oxygen content on the microstructure and properties of 3D-printed 316L 打印室氧气含量对 3D 打印 316L 的微观结构和性能的影响

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-08-01 DOI: 10.1088/1757-899x/1310/1/012007

WY Wang, W Liu, A Godfrey

引用次数: 0

Holistic springback compensation procedure 整体回弹补偿程序

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-05-01 DOI: 10.1088/1757-899x/1307/1/012034

P Zimmermann, A Birkert, P Saup, F Marner, M Häussermann

{"title":"Holistic springback compensation procedure","authors":"P Zimmermann, A Birkert, P Saup, F Marner, M Häussermann","doi":"10.1088/1757-899x/1307/1/012034","DOIUrl":"https://doi.org/10.1088/1757-899x/1307/1/012034","url":null,"abstract":"The elastic springback during the manufacturing process of stamped car body components causes dimensional deviations. To compensate these deviations, the common approach is to modify the tool surfaces in the opposite direction of the deviations – this is called springback compensation. In the procedure of springback compensation various issues must be solved. To achieve the main goal of a dimensionally accurate part, it must be ensured that, on the one hand the distance normal to the sheet surface between the springback part and the target geometry is within a specified dimensional tolerance. On the other hand, it must be ensured that the surface areas and characteristic lengths of the springback part and that of the target geometry match as closely as possible. In the past, approaches/methods, such as the physical compensation method and the physical scaling approach, have been presented which can successfully counteract these problems. Furthermore, in a multi-stage process in subsequent operations a stable part position must be achieved and unwanted plastic deformations must be avoided during blankholder closing. Therefore, different compensation strategies have been presented, which can fulfil these requirements. However, in the publication of these methods, the problems were always considered individually. This paper shows how all the named requirements can be achieved by combining the individual methods in springback compensation.","PeriodicalId":14483,"journal":{"name":"IOP Conference Series: Materials Science and Engineering","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523501","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

Comparison of homogeneous anisotropic hardening models in the case of the direct redrawing of a DP600 steel DP600 钢直接重拉情况下均质各向异性硬化模型的比较

IOP Conference Series: Materials Science and Engineering Pub Date : 2024-05-01 DOI: 10.1088/1757-899x/1307/1/012029

N Gautam, S Yoon, F Barlat, S Thuillier

引用次数: 0