Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/5846

Title

Residual stresses in AL7075 alloy plate laser clad with AL-12Si alloy powder

Author(s)

Durandet, Yvonne C.;  Deam, Rowan T.;  Bendeich, Philip;  Ripley, Michael;  Brandt, Milan;  Liu, Qianchu;  Baburamani, Pud

Abstract

Laser cladding of Al7075-T651 alloy rolled plates was performed at IRIS using a side injection powder nozzle, an Al-12Si alloy powder and a high power Nd:YAG laser. A single layer of clad alloy was deposited inside a groove machined along the plates’ rolling direction. The cladding direction was either parallel or transverse to the length of the groove, while the laser parameters (laser power, scan rate, powder mass flow rate, track increment) and size of the treated area were kept constant. Temperature measurements at the back face of the plates showed that the plates’ thermal histories differed significantly with the cladding direction. Residual stresses were measured in the clad and through the thickness of the plate using neutron diffraction scattering at ANSTO. Results are presented showing the effects of the laser cladding pattern on the energy input and the residual stress profiles in the plates.

Publication type

Conference paper

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne

Source

Proceedings of the 2nd Pacific International Conference on Application of Lasers and Optics 2006 : PICALO 2006, Melbourne, Victoria, Australia, 03-05 April 2006

Publication year

2006

Publisher

Laser Institute of America

ISBN

0912035846

Peer reviewed