The isothermal section of the Al-Cr-Si system at 800 °C and the crystal structure of τ2 (Cr3Al9Si)

被引：22

作者：

Chen, Hai-Lin ^{[1
]}

Weitzer, F.

Schuster, J. C.

Du, Y.

Xu, Honghui

机构：

[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

[2] Univ Vienna, Innovat Mat Grp, A-1090 Vienna, Austria

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 436卷 / 1-2期

基金：

奥地利科学基金会;

关键词：

intermetallics; scanning electron microscopy (SEM); X-ray diffraction;

D O I：

10.1016/j.jallcom.2006.07.038

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 system Al-Cr-Si at 800 degrees C is investigated using XRD and SEM/EDX on equilibrated alloys. Three ternary phases are found: tau(1)-Cr4Al13Si4 (F43m,Cr4Al13Si4-type, a= 1.09270(2)nm),tau(2)-Cr3Al9Si(P6(3)/mmc,Mn3Al9Si-type, a= 0.75346(3)nm,c=0.78393(4)nm)and tau(3)-Cr-4(AI,Si) I I (P-11 Mn4Al11 -type, a= 0.51260(2)nm, b=0.89802(4)nm, c=0.50472(3)nm, alpha=89.775(4)degrees, beta= 100.711(4)degrees and gamma=106.605(3)degrees for Cr27Al63Si10). Extended homogeneity ranges for tau(3) and several solid binary phases into the ternary are observed. The tie-lines between these phases are determined and the isothermal section at 800 degrees C over the entire composition range is presented. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：313 / 318

页数：6

共 17 条

[1] UNTERSUCHUNGEN IN DEN DREISTOFFSYSTEMEN - V-AL-SI, NB-AL-SI, CR-AL-SI, MO-AL-SI BZW CR(MO)-AL-SI [J].

BRUKL, C ;

NOWOTNY, H ;

BENESOVSKY, F .

MONATSHEFTE FUR CHEMIE, 1961, 92 (05) :967-&

[2]

CHEN HL, UNPUB DTA INVESTIGAT

[3]

ESSLINGER P, 1965, Z METALLKD, V56, P735

[4]

GOKHALE AB, 1986, BINARY ALLOY PHASE D, P862

[5] Investigation of the Al-Cr γ-range [J].

Grushko, B ;

Kowalska-Strzeciwilk, E ;

Przepiórzynski, B ;

Surowiec, M .

JOURNAL OF ALLOYS AND COMPOUNDS, 2005, 402 (1-2) :98-104

[6] Formation of intermetallic compounds in the Cr-Al-Si ternary system [J].

Gupta, SP .

MATERIALS CHARACTERIZATION, 2004, 52 (4-5) :355-370

[7] Thermodynamic investigation of the aluminum-chromium system [J].

Mahdouk, K ;

Gachon, JC .

JOURNAL OF PHASE EQUILIBRIA, 2000, 21 (02) :157-166

[8]

MURRAY JL, 1986, BINARY ALLOY PHASE D, P164

[9] The Al-Cr (aluminum-chromium) system [J].

Murray, JZ .

JOURNAL OF PHASE EQUILIBRIA, 1998, 19 (04) :368-375

[10] EXPERIMENTAL-STUDY OF THE AL-CR EQUILIBRIUM DIAGRAM [J].

NETO, JGC ;

GAMA, S ;

RIBEIRO, CA .

JOURNAL OF ALLOYS AND COMPOUNDS, 1992, 182 (02) :271-280

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