Tensile properties and damage mechanisms of compacted graphite iron based on microstructural simulation

被引：22

作者：

Yang, W. J. ^{[1
,2
]}

Pang, J. C. ^{[1
]}

Wang, L. ^{[3
]}

Wang, S. G. ^{[4
]}

Liu, Y. Z. ^{[5
]}

Hui, L. ^{[3
]}

Li, S. X. ^{[1
]}

Zhang, Z. F. ^{[1
]}

机构：

[1] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China

[2] Shenyang Aerosp Univ, Sch Mechatron Engn, Shenyang 110136, Peoples R China

[3] Shenyang Aerosp Univ, State Key Lab Aviat Digital Mfg Proc, Shenyang 110136, Peoples R China

[4] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[5] Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2021年 / 814卷

基金：

中国国家自然科学基金;

关键词：

Compacted graphite iron; Microstructure modeling; FE simulation; Tensile properties; Damage mechanisms; THERMAL-CONDUCTIVITY; 3D CHARACTERIZATION; CAST-IRON; ELEMENT; MORPHOLOGY; DEFORMATION; STRENGTH; BEHAVIOR; MICROMECHANISMS; VISUALIZATION;

D O I：

10.1016/j.msea.2021.141244

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mechanical properties of compacted graphite iron (CGI) are substantially related to the microstructural contents and morphologies. To develop a simple and effective relation between graphite morphology and mechanical properties of CGI, a prediction method based on microstructual simulation is proposed in the present work. CGI slices are selected depicting the distribution of graphite spatial morphology. Tensile properties and damage mechanisms of microstructural slices are simulated with finite element (FE) method. By statistics of the graphite area fraction and vermicularity, it shows that 2D slicing scheme can reasonably depict the spatial morphology of 3D CGI microstructure. Tensile properties and damage mechanisms are further analyzed in slice results. A good agreement of the results is observed between experiment and simulation, which verifies the effectiveness of slice FE simulation. This research provides an effective way to estimate the mechanical properties of different regions in the large CGI components.

引用

页数：7

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