The Platinum Development Initiative: Platinum-Based Alloys for High Temperature and Special Applications: Part I

被引：30

作者：

Cornish, L. A. ^{[1
,2
]}

Suss, R. ^{[1
,2
,3
]}

Douglas, A. ^{[1
,3
]}

Chown, L. H. ^{[1
,3
]}

Glaner, L. ^{[1
,2
,3
]}

机构：

[1] DST NRF Ctr Excellence Strong Mat, ZA-2050 Johannesburg, South Africa

[2] Univ Witwatersrand, Sch Chem & Met Engn, ZA-2050 Johannesburg, South Africa

[3] MINTEK, Adv Mat Div, ZA-2125 Randburg, South Africa

来源：

PLATINUM METALS REVIEW | 2009年 / 53卷 / 01期

关键词：

THERMODYNAMIC DATABASE; PT-AL; REFRACTORY SUPERALLOYS; PHASE-DIAGRAM; TRANSFORMATIONS; MICROSTRUCTURE; INTERMETALLICS; METALS; NICKEL; NB;

D O I：

10.1595/147106709X393299

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：

Under the auspices of the Platinum Development Initiative, platinum-based alloys are being developed for high-temperature and special applications requiring good corrosion and oxidation resistance. The best candidate system was found to be platinum-aluminium, after reviewing binary systems and assessing experimental ternary alloys. Ternary alloys based on Pt-Al, where the ternary additions comprised chromium, iridium, molybdenum, nickel, rhenium, ruthenium, tantalum, titanium and tungsten were tested. As well as phase characterisation work, mechanical and oxidation tests were undertaken. The best alloys were found to be Pt-Al-Cr and Pt-Al-Ru. The microstructures were similar to those of nickel-based superalloys, and comprise similar to Pt3Al precipitates in a Pt-based matrix. However, the volume fraction of the similar to Pt3Al was only similar to 40% instead of the similar to 70% found in Ni-based superalloys.

引用

页码：2 / 10

页数：9

共 53 条

[1]

Bard J, 1994, MECH PROPERTIES META, P341

[2]

Biggs BT, 2003, PLATIN MET REV, V47, P142

[3] Revised phase diagram for the Pt-Ti system from 30 to 60 at.% platinum [J].

Biggs, T ;

Cornish, LA ;

Witcomb, MJ ;

Cortie, MB .

JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 375 (1-2) :120-127

[4] An investigation of the Pt-Al-Ru diagram to facilitate alloy development [J].

Biggs, T ;

Hill, PJ ;

Cornish, LA ;

Witcomb, MJ .

JOURNAL OF PHASE EQUILIBRIA, 2001, 22 (03) :214-218

[5] Martensitic transformations, microstructure, and mechanical workability of TiPt [J].

Biggs, T ;

Cortie, MB ;

Witcomb, MJ ;

Cornish, LA .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2001, 32 (08) :1881-1886

[6] Martensite-type transformations in platinum alloys [J].

Biggs, T ;

Witcomb, MJ ;

Cornish, LA .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 273 :204-207

[7]

BIGGS T, 2001, THESIS U WITWATERSRA

[8]

COMPTON D, 2005, COMMUNICATION

[9] Building a Thermodynamic Database for Platinum-Based Superalloys: Part I INTRODUCTION, AND INITIAL RESULTS FROM THE COMPOUND ENERGY FORMALISM MODEL [J].

Cornish, L. A. ;

Suess, R. ;

Watson, A. ;

Prins, S. N. .

PLATINUM METALS REVIEW, 2007, 51 (03) :104-115

[10]

Cornish L.A., 2002, J. Min. Metall. Sect. B, V38, P197

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