Investigation of heat-resistant layered coating of Al-Cr-Ni

Taube

2018

SSP

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.

Section: Fig 3 a Stepwise Scheme Of Connecting Of The Joints Of A Tuyerementioning

confidence: 99%

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

Taube

2018

SSP

“…We have proposed a complex technology for saturating the surface of NiCr Al alloys, including the operations of explosion welding, pressure treatment and heat treatment (HT) [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Formation of the Diffusion Zone in Explosion Welded Composite Cr20Ni80 - AD1 at Liquid-Phase Interaction

Щербин

2021

DDF

The paper presents the investigation on the structure, chemical and phase composition of the diffusion coating formed during the liquid-phase heat treatment in the explosion-welded Cr20Ni80 + AD1 bimetal. It is shown that the coating structure consists of NiAl3, CrAl7, Ni2Al3 intermetallic inclusions, as well as a metastable ternary compound – τ2-phase (Al77.5Cr12.5Ni10) of different dispersion and morphology. There are no crystallization defects in the coating structure.

“…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.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of Diffusion Interaction in Cr15Ni60-AD1 Layered Composite

Щербин

2020

SSP

The structure, phase and chemical composition of the diffusion interaction zone, formed at the interlayer boundary of a layered composite of the alloy Cr15Ni60-aluminum AD1, are studied. The temperature-time conditions for its nucleation and growth are determined. The diffusion zone has a fine predominantly heterogeneous structure and consists of solid solutions based on aluminides Al3Ni, Al3Ni2 and Al7Cr, as well as the ternary compound Al5FeNi. It is shown that the intensity of diffusion zone growth at the interlayer boundary of the bimetal Cr15Ni60-AD1 is determined mainly by the heating temperature, and the dependence of its thickness on the exposure time obeys a parabolic law. The presence of chemical micro-inhomogeneity in the form of a melted metal at the interlayer boundary does not have a qualitative effect on the kinetics of the process: at the first stage, the diffusion zone repeats the contour of the fusion, and then, as the service time increases, «absorbs» it.