Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/60953
Title: Developments in laser-based surface engineering processes : with particular reference to protection against cavitation erosion
Authors: Kwok, CT
Man, HC 
Cheng, FT
Lo, KH
Keywords: Cavitation erosion
Corrosion
Laser surface modification
Protection
Synergism
Issue Date: 2016
Publisher: Elsevier
Source: Surface and coatings technology, 2016, v. 291, p. 189-204 How to cite?
Journal: Surface and coatings technology 
Abstract: With the increasing demands of economical, reliable and durable hydraulic and pneumatic systems, it is necessary to minimize the material damage from cavitation erosion (CE) when systems are handling cavitating and corrosive fluids. Cavitation erosion is a nausea for many engineering components, such as ship propellers & rudders, turbine, diesel engine, cylinder liner, pump impeller vanes, control valves, hydraulic turbines, bearings, pipes, ultrasonic cleaners and mechanical heart valves, which are exposed to the high-speed flowing or vibratory fluids. This paper reviews the rationale behind the application of laser surface modification for achieving CE resistant surfaces of fluid handling components. The problem of CE may be tackled by enhancing the surface properties of the base materials (ferrous and non-ferrous alloys) with various laser surface modification techniques including laser transformation hardening (LTH), laser surface melting (LSM), laser surface alloying (LSA), laser cladding (LC), laser dispersion (LD) and laser plasma hybrid spraying (LPHS). The CE performance of a variety of laser-surface modified layers/coatings is discussed in this review. In particular, coatings of hard-facing alloys, shape memory alloys, surface metal or intermetallic matrix composites and cermets on ferrous and non-ferrous alloys are included. The mechanisms of the enhancement in cavitation erosion resistance (Re) are discussed.
URI: http://hdl.handle.net/10397/60953
ISSN: 0257-8972
EISSN: 1879-3347
DOI: 10.1016/j.surfcoat.2016.02.019
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

7
Last Week
0
Last month
Citations as of Dec 2, 2017

WEB OF SCIENCETM
Citations

6
Last Week
0
Last month
Citations as of Dec 10, 2017

Page view(s)

62
Last Week
1
Last month
Checked on Dec 11, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.