Evaluation of Heat Resistance and Thermal Conductivity of Ni–Cr–Al System Layered Coatings

被引：0
作者：
V. G. Shmorgun
A. I. Bogdanov
A. O. Taube
V. P. Kulevich
机构：
[1] Volgograd State Technical University,
来源：
Metallurgist | 2022年 / 66卷
关键词：
explosion welding; heat treatment; protective coating; nickel aluminides; heat resistance; thermal conductivity; finite element simulation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, calculations and experiments were used to obtain the thermal conductivity equivalent coefficient value of layered (Ni2Al3 + CrAl7)/Cr20Ni80 coatings. The changes in the chemical composition because of the mutual diffusion of components, which determine the coating heat resistance, were analyzed. The simulation of the temperature field distribution over the cross section of the three-layer wall M1–Cr20Ni80–(Ni2Al3 + CrAl7) under conditions of reaching a stationary mode at an ambient temperature of 1600°C was performed using the DEFORM-2D software. The findings demonstrated that layered coatings (Ni2Al3 + CrAl7)/Cr20Ni80 could be considered heat-resistant and thermal barrier coatings. Such coatings provide high rates of high-temperature oxidation protection of copper air tuyeres of blast furnaces with minimal heat losses.
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页码：934 / 941
页数：7
相关论文
共 26 条
  • [1] Elagina OY(2009)Improvement of the reliability of layers sprayed with composite powders based on Al Uprav. Kach. Neftegaz. Kompl. 4 47-49
  • [2] Shmorgun VG(2016)O IOP Conf. Ser.: Mater. Sci. Eng. 116 6-174
  • [3] Trykov YP(2016), clad with an ultrathin layer of copper Mat. Sci. Forum. Trans Tech. Publ. 870 169-1119
  • [4] Bogdanov AI(2017)Investigation of heat-resistant layered coating of Al–CrNi Metallurgist 60 1113-174
  • [5] Taube AO(2017)Effect of the high-heating on the chemical and phase composition of the Al–Ni–Cr layered coatings IOP Conf. Ser.: Mater. Sci. Eng. 177 5-3176
  • [6] Shmorgun VG(2016)Phase composition of heat-resistant layered coatings of the Al-Cr-Ni system Mat. Sci. Forum 870 169-40
  • [7] Bogdanov AI(2002)The study of the chemical and phase composition of the diffusion interaction zone in layered composite Cr20Ni80-AD1 Mater. Trans. 43 3167-20
  • [8] Taube AO(2011)Effect of the high-heating on the chemical and phase composition of the Al–Ni–Cr layered coatings MiTOM, No. 1 34-undefined
  • [9] Shmorgun VG(2013)Thermal conductivity of intermetallic compounds with metallic bonding Aviatsion. Mater. Tekhnol. 1 17-undefined
  • [10] Iskhakova LD(undefined)Ion-plasma heat-resistant coatings with a composite barrier layer for protection against oxidation of ZhS36-VI alloy undefined undefined undefined-undefined
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