Layered Ni-Cr-Al Coatings for Air Tuyeres Protection from the Burnout

Abstract

A technological scheme for obtaining of the protective layered coating of the Ni-Cr-Al system on the surface of copper parts is proposed. Deformation of the explosion welded composite material copper substrate M1 + alloy Cr20Ni80 + aluminum AD1 in the process of the cold pressing of the tuyere nose was simulated in the SIMULIA/Abaqus software and the temperature distribution over the profile of the three-layer wall M1-Cr20Ni80-coating under the conditions of the process stabilization at background temperature 1600°С was simulated in the DEFORM-2D software.

Kinetics of Diffusion Interaction in Cr15Ni60-AD1 Layered Composite

“…In the works [1][2][3][4][5][6][7] the description of the technological process of obtaining heat-resistant layered coatings of the Al-Ni and Al-Cr-Ni system, including the operations of explosion welding, pressure treatment and heat treatment, is given. The basis for the production of such coatings are explosionwelded layered composite materials of alloy Cr20Ni80-aluminum AD1.…”

Analysis of Thermal Stresses in Layered Composite AD1 + Cr20Ni80 + M1 after Heat Treatment

“…The technological process of obtaining the heat-resistant coatings of the Ni-Cr-Al system on the surface of copper tuyeres of blast furnaces [1] proposed at the Department of Materials Science and Composite Materials of VSTU includes the following sequence of operations [2][3][4][5][6]:…”