Power Voronoi assisted modelling and simulation of austenite formation during continuous heating in C35 steel

Q3 Engineering

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2020-01-01 DOI:10.1504/IJCMSSE.2020.10034954

S. Sanchu, N. Biju, V. Namboothiri, K. Minu

{"title":"Power Voronoi assisted modelling and simulation of austenite formation during continuous heating in C35 steel","authors":"S. Sanchu, N. Biju, V. Namboothiri, K. Minu","doi":"10.1504/IJCMSSE.2020.10034954","DOIUrl":null,"url":null,"abstract":"In the development of materials with desired properties, modelling of transformation kinetics is an important aspect. Ability of power Voronoi assisted simulation in predicting transformation kinetics is examined in this work. Initially, a mathematical model is derived incorporating the geometrical properties of power Voronoi diagram and classical nucleation theory. This is the governing equation for the power Voronoi assisted simulation. Transformed fractions at different temperatures are calculated using this equation. Simulation of microstructure evolution is carried out using power Voronoi diagram by giving nucleation rate and interface velocity as input. From the resultant geometry, it is possible to calculate the transformed fraction. The results are validated and verified using the available experimental results in literature. On comparison, it is evident that, transformed fraction can be predicted with less than 4% error using power Voronoi assisted simulation model with the derived governing equation. Thus, power Voronoi diagram can be used to simulate microstructure evolution during austenitisation with reasonably good accuracy in phase fraction.","PeriodicalId":39426,"journal":{"name":"International Journal of Computational Materials Science and Surface Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Computational Materials Science and Surface Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/IJCMSSE.2020.10034954","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}

引用次数: 0

Abstract

In the development of materials with desired properties, modelling of transformation kinetics is an important aspect. Ability of power Voronoi assisted simulation in predicting transformation kinetics is examined in this work. Initially, a mathematical model is derived incorporating the geometrical properties of power Voronoi diagram and classical nucleation theory. This is the governing equation for the power Voronoi assisted simulation. Transformed fractions at different temperatures are calculated using this equation. Simulation of microstructure evolution is carried out using power Voronoi diagram by giving nucleation rate and interface velocity as input. From the resultant geometry, it is possible to calculate the transformed fraction. The results are validated and verified using the available experimental results in literature. On comparison, it is evident that, transformed fraction can be predicted with less than 4% error using power Voronoi assisted simulation model with the derived governing equation. Thus, power Voronoi diagram can be used to simulate microstructure evolution during austenitisation with reasonably good accuracy in phase fraction.

查看原文本刊更多论文

Power Voronoi辅助建模和模拟了C35钢在连续加热过程中奥氏体的形成

在开发具有理想性能的材料时，转化动力学建模是一个重要方面。功率Voronoi辅助模拟预测转化动力学的能力在这项工作中进行了检验。首先，结合幂Voronoi图的几何性质和经典成核理论，推导了一个数学模型。这是功率Voronoi辅助模拟的控制方程。用这个方程计算不同温度下的变换分数。以成核速率和界面速度为输入，采用功率Voronoi图模拟微观组织演化过程。从所得到的几何形状，可以计算出变换后的分数。利用文献中已有的实验结果对结果进行了验证和验证。通过比较，可以明显地看出，使用功率Voronoi辅助仿真模型和推导的控制方程，可以以小于4%的误差预测转换分数。因此，功率Voronoi图可用于模拟奥氏体化过程中的微观组织演变，相分数具有相当好的精度。

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

International Journal of Computational Materials Science and Surface Engineering Engineering-Engineering (all)

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： IJCMSSE is a refereed international journal that aims to provide a blend of theoretical and applied study of computational materials science and surface engineering. The scope of IJCMSSE original scientific papers that describe computer methods of modelling, simulation, and prediction for designing materials and structures at all length scales. The Editors-in-Chief of IJCMSSE encourage the submission of fundamental and interdisciplinary contributions on materials science and engineering, surface engineering and computational methods of modelling, simulation, and prediction. Papers published in IJCMSSE involve the solution of current problems, in which it is necessary to apply computational materials science and surface engineering methods for solving relevant engineering problems.