Development of a processing window for the transformation hardening of Nickel-Aluminium-Bronze

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Development of a processing window for the transformation hardening of Nickel-Aluminium-Bronze

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/92290

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Title: Development of a processing window for the transformation hardening of Nickel-Aluminium-Bronze
Author(s): Cottam, Ryan; Brandt, Milan
Abstract: Nickel-Aluminium-Bronzes (NAB) are typically used in marine applications because of their good combination of corrosion resistance and strength. Even though these alloys exhibit good properties they do suffer from wear, corrosion, dealloying, cavitation corrosion-erosion or corrosion fatigue during service. Therefore methods of increasing the resistance of this class of alloy to surface sensitive damage mechanisms are desirable. Transformation hardening through laser processing offers the potential to increase the resistance of these alloys surface sensitive mechanisms of damage and increase their life. A processing window has been developed through the use of an analytical heat transfer model to determine laser processing parameters that are close to the critical temperature for surface melting. The absorption of the laser by NAB has been determined and the processing window calculated taking into account the velocity of the laser, laser spot size and type as well as laser power.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne
Source: Materials Science Forum: proceedings of the 7th Pacific Rim International Conference on Advanced Materials and Processing (PRICM-7), Cairns, Queensland, Australia, 02-06 August 2010 / Jian-Feng Nie and Allan Morton (eds.), Vol. 654-656 (2010), pp. 1916-1919
Publication year: 2010
FOR Code(s): 0912 Materials Engineering; 1007 Nanotechnology
Keyword(s): Laser processing; Nickel-Aluminium-Bronze; Transformation hardening
Publisher: Trans Tech Publications
ISSN: 0255-5476
ISBN: 9780878492558, 0878492550
Publisher URL: http://dx.doi.org/10.4028/www.scientific.net/MSF.654-656.1916
Peer reviewed