Abrasion and corrosion resistant alloy and hardfacing/cladding applications

摘要

Weld deposit compositions with improved abrasion and corrosion resistance are provided by balancing percent weights of Chromium (Cr), Titanium (Ti), Niobium (Nb), and Boron (B) to allow the Chromium content of the weld matrix to be minimally reduced during carbide formation. The result is an enriched Chromium matrix that has excellent corrosion resistance in combination with highly abrasion resistant dispersed carbides.

主权项

1. A weld deposit composition for a GMAW application comprising, by percent mass:
between approximately 1.8% and approximately 2.5% Carbon; between approximately 0.8% and approximately 1.4% Manganese; between approximately 0.6% and approximately 1.2% Silicon; between approximately 23.0% and approximately 26.0% Chromium; between approximately 2.0% and approximately 3.0% Nickel; between approximately 0.7% and approximately 1.5% Molybdenum; between approximately 2.6% and approximately 3.6% Niobium; less than approximately 0.5% Titanium; between approximately 0.3% and approximately 0.8% Boron; between approximately 0% and approximately 0.4% Zirconium; and a balance comprising Iron; wherein the amount of Niobium and Titanium are balanced with the amount of Boron to form intermetallic borides therewith.