High temperature wear and corrosion resistance of a Laves phase strengthened Co-Mo-Cr-Si alloy
Creators
- 1. Deloro Stellite Inc., 471 Dundas Street East, Belleville, Ontario, K8N 1G2 (Canada)
- 2. Deloro Stellite Holdings Inc., 555 N New Ballas, STE 305, Saint Louis, MO 63127 (United States)
- 3. Solid Oxide Fuel Cell Group, NRC Institute for Fuel Cell Innovation, National Research Council Canada, 3250 East Mall, Vancouver, British Columbia, V6T 1W5 (Canada)
- 4. Department of Mechanical and Aerospace Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6 (Canada)
Description
A new alloy designated as T-400C comprising of (in wt.%) 14.0Cr, 26.0Mo, 2.6Si, and balance Co with excellent wear resistance and corrosion resistance is developed based on average electron hole number and average d-electron density calculations, and thermal gravitational analysis. Cylinder-on-flat and disc-on-flat wear tests against nitrided 310 stainless steel flat specimens have been carried out at 482 deg. C using a Cameron-Plint test machine. Immersion corrosion test is conducted in 65% HNO3 oxidizing acid at 66 deg. C, in 10% H2SO4 reducing acid at 102 deg. C and in 5% HCl reducing acid at 66 deg. C to evaluate the general corrosion resistance of the developed alloy. Alloy T-400C demonstrated better wear resistance and excellent corrosion resistance as compared to a common commercial alloy T-400 with a nominal chemical composition of 8.5% Cr, 28.5% Mo, 2.6% Si and the balance Co
Additional details
Identifiers
- DOI
- 10.1016/j.msea.2006.07.054;
- PII
- S0921-5093(06)01438-9;
Publishing Information
- Journal Title
- Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing
- Journal Volume
- 435-436
- Journal Page Range
- p. 78-83
- ISSN
- 0921-5093
- CODEN
- MSAPE3
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38079481
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CHEMICAL COMPOSITION; CHROMIUM ALLOYS; COBALT ALLOYS; CORROSION; CORROSION RESISTANCE; ELECTRON DENSITY; HOLES; INTERMETALLIC COMPOUNDS; LAVES PHASES; MOLYBDENUM ALLOYS; NITRIC ACID; OXIDATION; SILICON ALLOYS; STAINLESS STEELS; SULFURIC ACID; TEMPERATURE RANGE; WEAR; WEAR RESISTANCE
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; HIGH ALLOY STEELS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; STEELS; SULFUR COMPOUNDS; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.