Simulations of grain growth in realistic 3D polycrystalline microstructures and the MacPherson-Srolovitz equation

被引：10

作者：

Ullah, Asad ^{[1
]}

Ubaidullah ^{[2
]}

Khan, Matiullah ^{[3
]}

Xue Weihua ^{[4
]}

Hussain, Safdar ^{[1
]}

Rahman, Mujeeb Ur ^{[1
]}

Salamat, Nadeem ^{[1
]}

Haq, Fazal ^{[1
]}

机构：

[1] Karakoram Int Univ Gilgit Baltistan, Dept Math, Gilgit 15100, Pakistan

[2] Sukkur Inst Business Adm, Dept Math, Sukkur Sindh, Pakistan

[3] Kohat Univ Sci & Technol, Dept Phys, Kohat, Pakistan

[4] Liaoning Tech Univ, Sch Mat Sci & Engn, Fuxin 123099, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2017年 / 4卷 / 06期

关键词：

polycrystalline microstructures; realistic simulations; grain size; grain topology; MacPherson-Srolovitz model; COMPUTER-SIMULATION; DIMENSIONS; EVOLUTION;

D O I：

10.1088/2053-1591/aa7317

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An easy to implement and efficient methodology for simulations of grain growth in realistic three-dimensional (3D) polycrystalline microstructures is presented. The techniques of digital image processing and analysis are applied to incorporate real 3D reconstructed volume of the microstructure into simulations, which may be very helpful for a better representation of the initial state of microstructure to obtain realistic and unbiased results. Based on the simulation results of real microstructures (pure iron), the grain size and topology distributions are studied and finally the applicability of the MacPherson-Srolovitz relation (2007 Nature 446 1053-5) is investigated. The results showed that the grain growth rate measured in alpha-Fe grains is in good agreement with that predicted by the MacPherson-Srolovitz equation.

引用

页数：9

共 36 条

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