Effects of laser power during laser assisted cold spraying of Al-12wt%Si on stainless steel

Abstract

This study seeks to demonstrate Laser Assisted Cold Spraying (LACS) by depositing Al-12wt%Si on stainless steel substrate. LACS is a newly designed, assembled and commissioned technology in the CSIR, laser materials processing laboratories. The basis on which Al-12wt%Si powder is used are validated by the idea that this powder was available, cheap and its spherical nature is suitable to be used with technology. Also, this study wanted to demonstrate that any powder can be deposited on substrate using cheap gases like nitrogen, under no controlled environment , without pre-heating the gas. In addition, sufficient power used to soften the substrate will lead to efficient coatings.