Areal Coverage Using Friction Surfacing

Areal coatings of 304 and 316 marine grade stainless steel were made on flat mild steel substrates using a low-pressure friction surfacing technique and various deposition configurations. The maximum through-thickness tensile bond strength obtained for such coatings was 890 MPa (1.3 × 105 psi). Gaps or cracks or both between strips of deposited material were not eliminated completely during the manufacture of these coatings. Consequently, the overlay coatings described in this paper, which were made using a range of overlapping and non-overlapping deposition configurations, are primarily suitable for applications in noncorrosive environments.