Internal stresses in PVD coated tool composites

• Autorzy: Śliwa A. , Mikuła J. , Gołombek K. , Kwaśny W. , Pakuła D.

Identyfikatory

DOI

DOI: 10.1515/amm-2016-0225

• Języki publikacji: EN

Abstrakty

EN

The aim of work is the investigation of the internal stresses in PVD coated metal matrix composites (MMC). Sintered MMC substrate is composed of the matrix with the chemical composition corresponding to the high-speed steel, reinforced with the TiC type hard carbide phase. Functionally graded composition of MMC providing of high ductility characteristic of steel in the core zone as well as high hardness characteristic of cemented carbides in the surface zone. Internal stresses were determined with use of finite element method in ANSYS environment. The reason of undertaking the work is necessity of develop the research of internal stresses, occurring in the coating, as well as in the adhesion zone of coating and substrate, which makes it possible to draw valuable conclusions concerning engineering process of the advisable structure and chemical composition of coatings. The investigations were carried out on cutting tools models containing defined zones differing in chemical composition. Modelled materials were characteristic of chemical composition corresponding to the high-speed steel at the core, reinforced with the TiC type hard carbide phase with the growing fraction of these phases in the outward direction from the core to the surface, additionally coated with (Ti,Al)N or Ti(C.N) functionally graded PVD coatings. Results of determined internal stresses were compared with the results calculated using experimental X-ray sin²ψ method. It was demonstrated, that the presented model meets the initial criteria, which gives ground to the assumption about its utility for determining the stresses in coatings as well as in functionally graded sintered materials. The results of computer simulations correlate with the experimental results.

Słowa kluczowe

EN

analysis and modelling; computational materials science; finite element method; stresses; coatings PVD

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2016
• Tom: Vol. 61, iss. 3
• Strony: 1371--1378
• Opis fizyczny: Bibliogr. 21 poz., rys., tab., wykr.

Twórcy

autor

Śliwa A.

• Silesian Uniyersity of Technology, Institute of Engineering Materials and Biomaterials, 18A Konarskiego str., 44-100 Gliwice, Poland

autor

Mikuła J.

• Silesian Uniyersity of Technology, Institute of Engineering Materials and Biomaterials, 18A Konarskiego str., 44-100 Gliwice, Poland

autor

Gołombek K.

• Silesian Uniyersity of Technology, Institute of Engineering Materials and Biomaterials, 18A Konarskiego str., 44-100 Gliwice, Poland

autor

Kwaśny W.

• Silesian Uniyersity of Technology, Institute of Engineering Materials and Biomaterials, 18A Konarskiego str., 44-100 Gliwice, Poland

autor

Pakuła D.

• Silesian Uniyersity of Technology, Institute of Engineering Materials and Biomaterials, 18A Konarskiego str., 44-100 Gliwice, Poland

Bibliografia

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Uwagi

EN

This publication was financed by the Ministry of Science and Higher education of Poland as the statutory financial grant of the faculty of Mechanical engineering SUT