On the Problem of Wear Resistant Coatings Separation from Tools and Machine Elements

S. I. Petrushin, R. H. Gubaidulina, S. V. Gruby, A. V. Likholat

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

The article considers separation of wear resistant coatings of tool and engineering materials which arises both during coating fabrication and use of the product. The cause of this phenomenon is assumed to be related to thermal residual stresses generating on the coating- substrate border. These stresses have been analyzed and methods are provided to calculate it after produced composite material is cooled down from the temperature of coating synthesis to the ambient temperature. A no-fracture condition has been stated in relation to coating- substrate thicknesses, temperature differences and physical and mechanical properties of combined materials. The issue of intermediate layer incorporation with pre-set parameters has been discussed. A co-effect of thermal residual and functional stresses on the strength of the boundary layer has been considered when heating, tension and compression of a product with wear resistant coating. Conclusions have been made, as well as recommendations to improve fracture strength of products with thin wear resistant coatings.

Original languageEnglish
Article number012048
JournalIOP Conference Series: Materials Science and Engineering
Volume91
Issue number1
DOIs
Publication statusPublished - 14 Sep 2015
Event6th International Scientific Practical Conference on Innovative Technologies and Economics in Engineering - Yurga, Russian Federation
Duration: 21 May 201523 May 2015

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Wear of materials
Coatings
Substrates
Thermal stress
Temperature
Fracture toughness
Residual stresses
Boundary layers
Compaction
Physical properties
Heating
Fabrication
Mechanical properties
Composite materials

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

On the Problem of Wear Resistant Coatings Separation from Tools and Machine Elements. / Petrushin, S. I.; Gubaidulina, R. H.; Gruby, S. V.; Likholat, A. V.

In: IOP Conference Series: Materials Science and Engineering, Vol. 91, No. 1, 012048, 14.09.2015.

Research output: Contribution to journalConference article

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