700 °C Isothermal Section of the Al-Ti-Si Ternary Phase Diagram

被引：45

作者：

Li, Zhi ^{[1
,2
]}

Liao, Conglai ^{[1
,2
]}

Liu, Yongxiong ^{[1
,2
]}

Wang, Xinming ^{[1
,2
]}

Wu, Yu ^{[1
,2
]}

Zhao, Manxiu ^{[1
,2
]}

Long, Zhaohui ^{[1
,2
]}

Yin, Fucheng ^{[1
,2
]}

机构：

[1] Xiangtan Univ, Sch Mech Engn, Xiangtan 411105, Hunan, Peoples R China

[2] Xiangtan Univ, Key Lab Mat Design & Preparat Technol Hunan Prov, Xiangtan 411105, Hunan, Peoples R China

来源：

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2014年 / 35卷 / 05期

关键词：

Al-Ti-Si system; phase diagram; scanning electron microscope; x-ray diffraction; OXIDATION RESISTANCE; RICH CORNER; MICROSTRUCTURE; EQUILIBRIA; ALUMINIDE; SILICON; EVOLUTION; COATINGS; STEEL; LAYER;

D O I：

10.1007/s11669-014-0325-7

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：

The 700 degrees C isothermal section of the Al-Ti-Si ternary phase diagram has been determined experimentally by means of scanning electron microscopy coupled with energy dispersive x-ray spectroscopy and x-ray powder diffraction. Fourteen three-phase regions have been determined experimentally in the isothermal section at 700 degrees C. The ternary phases tau(1) (I4(1)/amd, Zr3Al4Si5-type) and tau(2) (Cmcm, ZrSi2-type) are confirmed in the system at 700 degrees C. The compositions of tau(1) and tau(2) are found as Al6.2-9.3Ti32.4-34.0Si57.5-60.9 and Al10.0-11.6Ti34.2-34.5Si53.9-55.6, respectively. The tau(3) and Ti3Al5 phases are not found in the section. The Ti-rich corner at 700 degrees C shows the presence of three three-phase equilibriums, i.e., (TiAl + Ti3Al + Ti5Si3), (alpha-Ti + Ti3Si + Ti5Si3) and (alpha-Ti + Ti3Al + Ti5Si3). The maximum solubility of Al in Ti5Si3, Ti3Si and alpha-Ti is 6.0, 1.5 and 13.9 at.% at 700 degrees C, respectively. The maximum solubility of Si in L-Al, TiAl3, TiAl2, TiAl, Ti3Al and alpha-Ti is 24.1, 13.6, 1.5, 0.8, 2.3 and 2.3 at.%, respectively.

引用

页码：564 / 574

页数：11

共 37 条

[11] Influence of Si and Ti contents on the microstructure, microhardness and performance of TiAlSi intermetallics in Al-Si-Ti alloys [J].

Gao, Tong ;

Li, Pengting ;

Li, Yunguo ;

Liu, Xiangfa .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (31) :8013-8017

[12] The role of Si and Ti additions on the formation of the alloy layer at the interface of hot-dip Al-Zn coatings on steel strips [J].

García, F ;

Salinas, A ;

Nava, E .

MATERIALS LETTERS, 2006, 60 (06) :775-778

[13] Intermetallic compounds in diffusion couples of Ti with an Al-Si eutectic alloy [J].

Gupta, SP .

MATERIALS CHARACTERIZATION, 2002, 49 (04) :321-330

[14] Influence of silicon on hot-dip aluminizing process and subsequent oxidation for preparing hydrogen/tritium permeation barrier [J].

Han, Shilei ;

Li, Hualing ;

Wang, Shumao ;

Jiang, Lijun ;

Liu, Xiaopeng .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (07) :2689-2693

[15] Directional solidification and microstructural control of the TiAl/Ti3Al lamellar microstructure in TiAl-Si alloys [J].

Johnson, DR ;

Inui, H ;

Yamaguchi, M .

ACTA MATERIALIA, 1996, 44 (06) :2523-2535

[16] On the reaction scheme and liquidus surface in the ternary system Al-Si-Ti [J].

Liu, Shuhong ;

Weitzer, Franz ;

Schuster, Julius C. ;

Krendelsberger, Nataliya ;

Du, Yong .

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2008, 99 (07) :705-711

[17]

Lukas H.-L., 2003, CRYS STRUCTURE EQUI, P29

[18] EFFECT OF SILICON AND NIOBIUM ON OXIDATION RESISTANCE OF TIAL INTERMETALLICS [J].

MAKI, K ;

SHIODA, M ;

SAYASHI, M ;

SHIMIZU, T ;

ISOBE, S .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 153 (1-2) :591-596

[19]

Massalski T. B., 1990, BINARY ALLOY PHASE D, P3304

[20] CALCULATION OF THE TITANIUM-ALUMINUM PHASE-DIAGRAM [J].

MURRAY, JL .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1988, 19 (02) :243-247

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