Numerical investigation of laser deposited Al-based coatings on Ti-6Al-4V alloy

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) Pub Date : 2018-02-01 DOI:10.1109/ICMIMT.2018.8340426

O. Fatoba, S. Akinlabi, E. Akinlabi

{"title":"Numerical investigation of laser deposited Al-based coatings on Ti-6Al-4V alloy","authors":"O. Fatoba, S. Akinlabi, E. Akinlabi","doi":"10.1109/ICMIMT.2018.8340426","DOIUrl":null,"url":null,"abstract":"Titanium Alloy (Ti6Al4V) opened a wide range of useful applications in aerospace industries; these industries make use of different additive manufacturing (AM) techniques to obtain parts of different properties for different uses by this titanium alloy. Ttitanium alloy mainly stands out due to the properties such as high specific strength to weight ratio, and excellent corrosion resistance. Despite these benefits, the formation of defects such as pores and cracks play a vital role in the quality of the deposited coatings. The presence of these unwanted artefacts on laser deposited coatings depends on the melting, cooling and solidification of the melt pool. In this research, a simulation of the heat transfers and fluid dynamics of the melt pool is developed to predict the process parameters and reinforcement proportions on the clad geometry quality. The results were compared to the experimental results for confirmation and validation. Numerical modelling using COMSOL multiphysics 5.2 revealed the thermal behaviour of the coated samples.","PeriodicalId":354924,"journal":{"name":"2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"25","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICMIMT.2018.8340426","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 25

Abstract

Titanium Alloy (Ti6Al4V) opened a wide range of useful applications in aerospace industries; these industries make use of different additive manufacturing (AM) techniques to obtain parts of different properties for different uses by this titanium alloy. Ttitanium alloy mainly stands out due to the properties such as high specific strength to weight ratio, and excellent corrosion resistance. Despite these benefits, the formation of defects such as pores and cracks play a vital role in the quality of the deposited coatings. The presence of these unwanted artefacts on laser deposited coatings depends on the melting, cooling and solidification of the melt pool. In this research, a simulation of the heat transfers and fluid dynamics of the melt pool is developed to predict the process parameters and reinforcement proportions on the clad geometry quality. The results were compared to the experimental results for confirmation and validation. Numerical modelling using COMSOL multiphysics 5.2 revealed the thermal behaviour of the coated samples.

查看原文本刊更多论文

Ti-6Al-4V合金激光沉积al基涂层的数值研究

钛合金(Ti6Al4V)在航空航天工业中开辟了广泛的有用应用;这些行业利用不同的增材制造(AM)技术，通过这种钛合金获得不同用途的不同性能的部件。t钛合金主要以其高的比强比和优异的耐腐蚀性等性能而脱颖而出。尽管有这些优点，气孔和裂纹等缺陷的形成对沉积涂层的质量起着至关重要的作用。这些不需要的工件在激光沉积涂层上的存在取决于熔池的熔化、冷却和凝固。在本研究中，通过模拟熔池的传热和流体动力学来预测工艺参数和配筋比例对覆层几何质量的影响。将所得结果与实验结果进行了对比，进行了确认和验证。利用COMSOL multiphysics 5.2进行数值模拟，揭示了涂层样品的热行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2018 IEEE 9th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT)

自引率

0.00%

发文量