Please use this identifier to cite or link to this item:
Title: The effect of laser treatment on the mechanical and electrical properties of busbar joints
Authors: Wong, TT
MacAlpine, JMK
An, G
Liang, GY
Keywords: Busbars
Electric conductivity
Laser alloying
Salt spray corrosion
Issue Date: 2004
Publisher: Inderscience Enterprises Ltd
Source: International journal of materials and product technology, 2004, v. 21, no. 6, p. 473-486 How to cite?
Journal: International Journal of Materials and Product Technology 
Abstract: A high proportion of the faults in electrical substations are due to the overheating of busbar joints. Surface contamination due to atmospheric corrosion is a main cause. Laser surface treatments have previously been applied by the authors to improve the surface hardness and corrosion resistance of aluminium alloys. Similarly, a chromium protective coating can be produced on copper by laser-alloying. This should allow more reliable bolt-together busbar joints to be made up on site with less attention to surface cleanliness. In this study experimental investigations were made into the mechanical and electrical properties of laser-treated copper busbar joints under various conditions of applied torque and current flow. It was found that the maximum hardness of the laser-alloyed layer could reach HV95, which is almost 50% higher than that of the original sample. There were insignificant differences between the temperature distribution associated with the laser-alloyed and the untreated samples. The corrosion resistance of the laser-alloyed sample is slightly better than that of the original sample in the salt spray corrosion test. The electric conductivity of the uncorroded laser-alloyed joints was only slightly lower than that of the uncorroded untreated joints.
ISSN: 0268-1900
Appears in Collections:Journal/Magazine Article

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

Page view(s)

Last Week
Last month
Citations as of Aug 13, 2018

Google ScholarTM


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