NOVEL PHASES IN THE OXIDATION OF GAMMA-TITANIUM ALUMINUM

被引：41

作者：

BEYE, RW

GRONSKY, R

机构：

[1] Department of Materials Science and Mineral Engineering, University of California, Berkeley

来源：

ACTA METALLURGICA ET MATERIALIA | 1994年 / 42卷 / 04期

关键词：

D O I：

10.1016/0956-7151(94)90155-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper concentrates on the high temperature oxidation of gamma-titanium aluminum. Samples of Ti-47.5 at.% Al were subjected to a 1000-degrees-C oxygen environment for various times and subsequently examined by Auger Electron Spectroscopy (AES), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and optical microscopy. AES proved to be useful in identifying oxygen scavenging by Ti3Al and also in examining a subscale Al depletion layer, which was found to contain two previously unreported phases, tentatively identified as Ti10Al6O, and Ti10Al6O2. These phases enabled an updated description of gamma-titanium aluminum oxidation at temperatures from room temperature to above 1100-degrees-C.

引用

页码：1373 / 1381

页数：9

共 14 条

[1]

GULAMOVA DD, 1989, IZVEST AKAD NAUK SSS, V25, P789

[2] OXIDATION BEHAVIOR OF TIAL3-BASED ALLOYS WITH THE LI-2 STRUCTURE [J].

HIRUKAWA, K ;

MABUCHI, H ;

NAKAYAMA, Y .

SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (05) :1211-1216

[3]

KIM YW, 1989, JOM-J MIN MET MAT S, V41, P24

[4]

KIM YW, 1991, J MET, V43, P340

[5]

Kittel C., 1986, INTRO SOLID STATE PH, Vsixth

[6] OXIDATION OF 2-PHASE (TIAL+TI3AL) ALLOY [J].

LEE, EU ;

WALDMAN, J .

SCRIPTA METALLURGICA, 1988, 22 (09) :1389-1394

[7]

MEIER GH, 1989, OXIDATION HIGH TEMPE, P185

[8]

OGLETREE F, COMMUNICATION

[9] FORMATION OF ALUMINA ON TI-AL ALLOYS [J].

PERKINS, RA ;

CHIANG, KT ;

MEIER, GH .

SCRIPTA METALLURGICA, 1987, 21 (11) :1505-1510

[10] THERMODYNAMIC ASPECTS OF TIAL AND TISI2 OXIDATION - THE AL-TI-O AND SI-TI-O PHASE-DIAGRAMS [J].

RAHMEL, A ;

SPENCER, PJ .

OXIDATION OF METALS, 1991, 35 (1-2) :53-68

← 1 2 →