Low-Density Steels: The Effect of Al Addition on Microstructure and Properties

被引：34

作者：

Pramanik, Sudipta ^{[1
]}

Suwas, Satyam ^{[1
]}

机构：

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

来源：

JOM | 2014年 / 66卷 / 09期

关键词：

MECHANICAL-PROPERTIES;

D O I：

10.1007/s11837-014-1129-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Density reduction of automotive steels is needed to reduce fuel consumption, thereby reducing greenhouse gas emissions. Aluminum addition has been found to be effective in making steels lighter. Such an addition does not change the crystal structure of the material. Steels modified with aluminum possess higher strength with very little compromise in ductility. In this work, different compositions of Fe-Al systems have been studied so that the desired properties of the material remain within the limit. A density reduction of approximately 10% has been achieved. The specific strength of optimal Fe-Al alloys is higher than conventional steels such as ultra-low-carbon steels.

引用

页码：1868 / 1876

页数：9

共 17 条

[1] Microstructural change in austenitic Fe-30.0wt%Mn-7.8wt%Al-1.3wt%C initiated by spinodal decomposition and its influence on mechanical properties [J].

Choo, WK ;

Kim, JH ;

Yoon, JC .

ACTA MATERIALIA, 1997, 45 (12) :4877-4885

[2]

Davies G, 2012, MATERIALS FOR AUTOMOBILE BODIES, 2ND EDITION, P1

[3] METHOD FOR THE SIMULTANEOUS DETERMINATION OF ANISOTROPIC RESIDUAL-STRESSES AND TEXTURE BY X-RAY-DIFFRACTION [J].

FERRARI, M ;

LUTTEROTTI, L .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (11) :7246-7255

[4] Physical and mechanical properties of iron-aluminium-(Mn, Si) lightweight steels [J].

Frommeyer, G ;

Drewes, EJ ;

Engl, B .

REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 2000, 97 (10) :1245-1253

[5] Microstructures and mechanical properties of high-strength Fe-Mn-Al-C light-weight TRIPLEX steels [J].

Frommeyer, Georg ;

Bruex, Udo .

STEEL RESEARCH INTERNATIONAL, 2006, 77 (9-10) :627-633

[6]

Fukuroi T., 1953, SCI REP RITU A, VA5, P405

[7] Dislocation density measurement by electron channeling contrast imaging in a scanning electron microscope [J].

Gutierrez-Urrutia, I. ;

Raabe, D. .

SCRIPTA MATERIALIA, 2012, 66 (06) :343-346

[8]

Howell R, 2009, AIST, V6, P193

[9] Tensile deformation of a duplex Fe-20Mn-9Al-0.6C steel having the reduced specific weight [J].

Hwang, Si Woo ;

Ji, Jung Hoon ;

Lee, Eui Gil ;

Park, Kyung-Tae .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (15) :5196-5203

[10] Electrical properties of iron aluminides [J].

Lilly, AC ;

Deevi, SC ;

Gibbs, ZP .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 258 (1-2) :42-49

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