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Journal ArticleDOI

Topology of grain deformation

Shiv Brat Singh, +1 more
- 01 Aug 1998 - 
- Vol. 14, Iss: 8, pp 832-834
TLDR
In this article, a method is described for calculating changes in the surface area and edge per unit volume as a function of common deformations encountered in the production of steels, where each grain in the undeformed material is represented by a tetrakaidecahedron, a shape which is a realistic representation of equiaxed grains.
Abstract: 
The deformation of a polycrystalline material leads to changes in the amount of grain surface and grain edge per unit volume. These parameters are of importance in kinetic theory since both surfaces and edges are heterogeneous nucleation sites. In the present study a method is described for calculating changes in the surface area and edge per unit volume as afunction of common deformations encountered in the production of steels. Unlike previous analyses, each grain in the undeformed material is represented by a tetrakaidecahedron, a shape which is a realistic representation of equiaxed grains. There are some interesting results which are compared with previous work.

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Journal ArticleDOI

Recent advances in friction-stir welding : Process, weldment structure and properties

R. Nandan, +2 more
- 01 Aug 2008 - 
TL;DR: In this article, the authors deal with the fundamental understanding of the process and its metallurgical consequences, focusing on heat generation, heat transfer and plastic flow during welding, elements of tool design, understanding defect formation and the structure and properties of the welded materials.
Journal ArticleDOI

Progress in thermomechanical control of steel plates and their commercialization

Kiyoshi Nishioka, +1 more
- 03 Apr 2012 - 
TL;DR: This review describes metallurgical aspects of the microalloying of steel, such as niobium addition, and discusses advantages of TMCP in terms of weldability, which is reduced upon alloying.
Journal ArticleDOI

Microstructure prediction of the austenite recrystallization during multi-pass steel strip hot rolling: A cellular automaton modeling

Chengwu Zheng, +3 more
- 01 Dec 2008 - 
TL;DR: In this paper, a mesoscopic cellular automaton (CA) model was developed to predict the microstructural evolution of the austenite recrystallization during multi-pass hot rolling of steel strip.
Journal ArticleDOI

Mesoscale simulation of the high-temperature austenitizing and dynamic recrystallization by coupling a cellular automaton with a topology deformation technique

Fei Chen, +4 more
- 20 Aug 2010 - 
TL;DR: In this article, the authors developed a cellular automaton model coupling with a topology deformation technique to simulate the microstructural evolution of 30Cr2Ni4MoV rotor steel during the high-temperature austenitizing and dynamic recrystallization (DRX).
Journal ArticleDOI

A simulation of dynamic recrystallization by coupling a cellular automaton method with a topology deformation technique

Namin Xiao, +3 more
- 01 Jan 2008 - 
TL;DR: In this paper, a quasi-synchronous integration model is constructed by coupling a cellular automaton (CA) model with a topology deformation technique for simulating the microstructure evolution of dynamic recrystallization (DRX).
References
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Journal ArticleDOI

Computer Modelling of Phase Transformation from Work-hardened Austenite

Minoru Umemoto, +7 more
- 15 Mar 1992 - 
TL;DR: In this paper, the effects of work-hardening of austenite on the nucleation and growth rates of various phases are discussed and a mathematical model of transformation kinetics from workhardened Austenite is also presented.
Journal ArticleDOI

Transformation to Pearlite from Work-hardened Austenite

Minoru Umemoto, +2 more
- 01 Jan 1983 - 
Journal ArticleDOI

Effect of deformation on ferrite nucleation and growth in a plain carbon and two microalloyed steels

E. Essadiqi, +1 more
- 01 Jun 1989 - 
TL;DR: Isothermal compression tests were carried out on plain C, Mo, and Mo−Nb−V microalloyed steels in order to study the effect of austenite deformation on the ferrite nucleation and growth rates as discussed by the authors.