Modeling growth of hydrogen bubbles in aluminum castings using the level-set method

被引：23

作者：

Karagadde, Shyamprasad ^{[1
]}

Sundarraj, Suresh ^{[2
]}

Dutta, Pradip ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Mech Engn, Bangalore 560012, Karnataka, India

[2] Gen Motors India Sci Lab, Bangalore, Karnataka, India

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 02期

关键词：

Diffusion driven growth; Porosity; Interface velocity; Bubble growth and movement; DIFFUSION; ALLOYS;

D O I：

10.1016/j.scriptamat.2009.03.043

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new approach is proposed to solve for the growth as well as the movement of hydrogen bubbles during solidification in aluminum castings. A level-set methodology has been adopted to handle this multiphase phenomenon. A microscale domain is considered and the growth and movement of hydrogen bubbles in this domain has been studied. The growth characteristics of hydrogen bubbles have been evaluated under free growth conditions in a melt having a hydrogen input caused by solidification occurring around the microdomain. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：216 / 219

页数：4

共 15 条

[1]

Atwood R.C., 2000, MODELING CASTING WEL, P2

[2] Diffusion-controlled growth of hydrogen pores in aluminium-silicon castings:: In situ observation and modelling [J].

Atwood, RC ;

Sridhar, S ;

Zhang, W ;

Lee, PD .

ACTA MATERIALIA, 2000, 48 (02) :405-417

[3] Modeling the effect of finite-rate hydrogen diffusion on porosity formation in aluminum alloys [J].

Carlson, Kent D. ;

Lin, Zhiping ;

Beckermann, Christoph .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2007, 38 (04) :541-555

[4]

Granger D. A., 1989, LIGHT MET, P927

[5]

LEE PD, 2001, J LIGHT MET, V15, P1

[6] Computation of incompressible bubble dynamics with a stabilized finite element level set method [J].

Nagrath, S ;

Jansen, KE ;

Lahey, RT .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2005, 194 (42-44) :4565-4587

[7] Level set methods: An overview and some recent results [J].

Osher, S ;

Fedkiw, RP .

JOURNAL OF COMPUTATIONAL PHYSICS, 2001, 169 (02) :463-502

[8]

Osher S., 1988, J COMPUT PHYS, V79, P12, DOI [10.1016/0021-9991(88)90002-2, DOI 10.1016/0021-9991(88)90002-2]

[9]

Patankar S., 1980, NUMERICAL HEAT TRANS

[10] Modeling of microporosity, macroporosity, and pipe-shrinkage formation during the solidification of alloys using a mushy-zone refinement method: Applications to aluminum alloys [J].

Pequet, C ;

Gremaud, M ;

Rappaz, M .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (07) :2095-2106

← 1 2 →