Isolation and testing of new single crystal superalloys using alloys-by-design method

Three new single crystal superalloys are isolated using theory-based computational modelling approaches, termed alloys-by-design methods. They are (i) an oxidation-resistant low Re-containing alloy with balanced properties, intended for general-purpose gas turbine applications; (ii) an alloy contain...

Full description

Saved in:
Bibliographic Details
Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 667; pp. 261 - 278
Main Authors Reed, R.C., Zhu, Z., Sato, A., Crudden, D.J.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 14.06.2016
Subjects
Alloy design
Creep
Experimental testing
Gas turbine engines
Materials science
Microstructure
Nickel-based superalloy
Oxidation
Oxidation resistance
Single crystals
Structural materials
Superalloys
Nickel-based superalloy
Oxidation
Creep
Experimental testing
Alloy design
Online AccessGet full text

Cover

More Information
Summary:Three new single crystal superalloys are isolated using theory-based computational modelling approaches, termed alloys-by-design methods. They are (i) an oxidation-resistant low Re-containing alloy with balanced properties, intended for general-purpose gas turbine applications; (ii) an alloy containing 5.6wt% Re and 2.6wt% Ru suitable for high performance jet engine applications, when creep resistance needs to be maximised without oxidation performance being excessively compromised and (iii) a cheap, corrosion-resistant alloy for power generation applications designed with ease-of-processing in mind. The new alloys have been manufactured using investment casting techniques, and their creep and oxidation behaviour evaluated. The robustness of the so-called alloys-by-design methods is demonstrated, although the predictions for microstructural stability need to be improved.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2016.04.089