Intermediary phases formation in Fe-Al-Si alloys during reactive sintering

被引：34

作者：

Novak, Pavel ^{[1
]}

Knotek, Vitezslav ^{[1
]}

Voderova, Milena ^{[1
]}

Kubasek, Jiri ^{[1
]}

Serak, Jan ^{[1
]}

Michalcova, Alena ^{[1
]}

Vojtech, Dalibor ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Met & Corros Engn, CR-16628 Prague 6, Czech Republic

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 497卷 / 1-2期

关键词：

Reactive sintering; Powder metallurgy; Iron aluminide; Iron silicide; Wear resistance; IRON;

D O I：

10.1016/j.jallcom.2010.03.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Formation of intermediary phases during reactive sintering of Fe-Al-Si powder mixtures at 1100 C was studied in this work. Results show significant difference from already presented results achieved at lower sintering temperatures Phase composition is closer to the equilibrium phase diagram Silicon additions up to 10 wt % produce binary Fe-Al phases, further increase of silicon content leads to the formation of FeSi silicide and Al2Fe3Si3 ternary phase. Binary FeSi40 alloy contains FeSi and FeSi2 Porosity is reduced by addition of silicon. The lowest porosity was achieved when 10 wt % of silicon was added Formation of binary Fe-Al phases is controlled by aluminium diffusion through the layer of intermetallics. In Fe-Al-Si system, the controlling process is the reaction producing ternary intermediary phases The highest wear resistance was determined in FeAl30Si10 alloy with single-phase FeAl structure. An increase of silicon content reduces the wear resistance although hardness increases. (C) 2010 Elsevier B V All rights reserved

引用

页码：90 / 94

页数：5

共 21 条

[1]

Birks N, 2006, INTRODUCTION TO THE HIGH-TEMPERATURE OXIDATION OF METALS, 2ND EDITION, P1, DOI 10.1017/CBO9781139163903

[2] Intermetallic compound layer growth between solid iron and molten aluminium [J].

Bouche, K ;

Barbier, F ;

Coulet, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 249 (1-2) :167-175

[3] Growth of intermetallic layer in the aluminide mild steel during hot-dipping [J].

Cheng, Wei-Jen ;

Wang, Chaur-Jeng .

SURFACE & COATINGS TECHNOLOGY, 2009, 204 (6-7) :824-828

[4] A thermodynamic description of the Al-Fe-Si system over the whole composition and temperature ranges via a hybrid approach of CALPHAD and key experiments [J].

Du, Yong ;

Schuster, Julius Clemens ;

Liu, Zi-Kui ;

Hu, Rongxiang ;

Nash, Philip ;

Sun, Weihua ;

Zhang, Weiwei ;

Wang, Jiong ;

Zhang, Lijun ;

Tang, Chengying ;

Zhu, Zhijun ;

Liu, Shuhong ;

Ouyang, Yifang ;

Zhang, Wenqing ;

Krendelsberger, Nataliya .

INTERMETALLICS, 2008, 16 (04) :554-570

[5] X-RAY AND ELECTRON-DIFFRACTION INVESTIGATIONS ON THE LIQUID-QUENCHED FE2AL5 [J].

ELLNER, M ;

MAYER, J .

SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (03) :501-504

[6] Spark plasma sintering and deformation of Ti-TiB2 composites [J].

Eriksson, Mirva ;

Salamon, David ;

Nygren, Mats ;

Shen, Zhijian .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 475 (1-2) :101-104

[7] Porous FeAl intermetallics fabricated by elemental powder reactive synthesis [J].

Gao, Haiyan ;

He, Yuehui ;

Shen, Peizhi ;

Zou, Jin ;

Xu, Nanping ;

Jiang, Yao ;

Huang, Baiyun ;

Liu, C. T. .

INTERMETALLICS, 2009, 17 (12) :1041-1046

[8] Dense Ti3SiC2 prepared by reactive HIP [J].

Gao, NF ;

Miyamoto, Y ;

Zhang, D .

JOURNAL OF MATERIALS SCIENCE, 1999, 34 (18) :4385-4392

[9] Processing of iron aluminides by pressureless sintering through Fe plus Al elemental route [J].

Gedevanishvili, S ;

Deevi, SC .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 325 (1-2) :163-176

[10] Swelling behavior in reactive sintering of Fe-Al mixtures [J].

Kang, HZ ;

Hu, CT .

MATERIALS CHEMISTRY AND PHYSICS, 2004, 88 (2-3) :264-272

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