METAL ALLOY COMPOSITIONS AND APPLICATIONS THEREOF

摘要

A method for protecting a work piece for use in abrasive environments with hardbanding is provided. The layer is deposited onto at least a portion of the work piece to be protected. The deposited layer exhibits a hardness of at least 50 Rc, a wear rate of less than 0.5 grams of mass loss as measured according to ASTM G65-04, Procedure A, a wear rate on a contacting secondary body comprising carbon steel of less than 0.005 grams as measured according to modified ASTM G77 wear test. The deposited alloy forms an iron matrix comprising embedded hard particles in an amount of less than 15 vol. %. The embedded hard particles have an average particle size of ranging from 100 nm to 5 mum. In one embodiment, the deposition is via welding.