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Proceedings of ABM Annual Congress

ISSN 2594-5327

65º Congresso ABM — vol. 65, num.65 (2010)

Title

INFLUENCE OF STRUCTURE ON BRITTLENESS OF BORON NITRIDE COATINGS DEPOSITED ON CEMENTED NANOCARBIDES

INFLUENCE OF STRUCTURE ON BRITTLENESS OF BORON NITRIDE COATINGS DEPOSITED ON CEMENTED NANOCARBIDES

Authorship

Kupczyk, Maciej Jan; Michalski, Andrzej; Siwak, Piotr

Kupczyk, Maciej Jan
Kupczyk, Maciej Jan

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Michalski, Andrzej
Michalski, Andrzej

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Siwak, Piotr
Siwak, Piotr

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DOI

10.5151/2594-5327-17048

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Abstract

In the article is presented the brittleness study of boron nitride coatings deposited on cutting edges made of cemented nanocarbides by the pulse-plasma method (PPD). Influences of the structure (density, pores, microcracks) of coating material on the brittleness and on selected technological parameters of boron nitride formation by PPD method particularly taking into account discharge voltage on brittleness are shown. Differences between values of total average crack length ΣL, critical loads (Pk300, Pk500) and coefficients (a1(300) and a1(500)) characterized susceptibility to cracking of investigated coatings manufactured using different values of production process were defined. Results of an investigations have been confirmed usefulness of Palmqvist’s method for measurement of coating susceptibility to brittle cracking.

 

In the article is presented the brittleness study of boron nitride coatings deposited on cutting edges made of cemented nanocarbides by the pulse-plasma method (PPD). Influences of the structure (density, pores, microcracks) of coating material on the brittleness and on selected technological parameters of boron nitride formation by PPD method particularly taking into account discharge voltage on brittleness are shown. Differences between values of total average crack length ΣL, critical loads (Pk300, Pk500) and coefficients (a1(300) and a1(500)) characterized susceptibility to cracking of investigated coatings manufactured using different values of production process were defined. Results of an investigations have been confirmed usefulness of Palmqvist’s method for measurement of coating susceptibility to brittle cracking.

Keywords

Wear-resistant coatings; PVD; Brittleness; Structure.

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How to refer

Kupczyk, Maciej Jan; Michalski, Andrzej; Siwak, Piotr. INFLUENCE OF STRUCTURE ON BRITTLENESS OF BORON NITRIDE COATINGS DEPOSITED ON CEMENTED NANOCARBIDES , p. 4836-4844. In: 65º Congresso ABM, Rio de Janeiro, 2010.
ISSN: 2594-5327 , DOI 10.5151/2594-5327-17048