Adhesive wear of TiAlN coatings during low speed turning of stainless steel 316L

Moreno, Maiara (författare): Lund University,Lunds universitet,Linköpings universitet,Linköping University,Nanostrukturerade material,Tekniska fakulteten,Seco Tools AB, Sweden; Lund Univ, Sweden,Industriell Produktion,Institutionen för maskinvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Production and Materials Engineering,Department of Mechanical Engineering Sciences,Departments at LTH,Faculty of Engineering, LTH

M'Saoubi, Rachid (författare): Lund University,Lunds universitet,Industriell Produktion,Institutionen för maskinvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Production and Materials Engineering,Department of Mechanical Engineering Sciences,Departments at LTH,Faculty of Engineering, LTH,Seco Tools AB

Johansson-Jöesaar, Mats P., 1965- (författare): Linköpings universitet,Linköping University,Seco Tools AB, Sweden,Nanostrukturerade material,Tekniska fakulteten

Johnson, Lars J.S. (författare): Sandvik Coromant AB,Sandvik Coromant, Sweden

Odén, Magnus, 1965- (författare): Linköpings universitet,Linköping University,Nanostrukturerade material,Tekniska fakulteten

Rogström, Lina (författare): Linköpings universitet,Linköping University,Nanostrukturerade material,Tekniska fakulteten

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Abstract Ämnesord

Stäng

The wear behavior of TiAlN coatings during turning of stainless steel 316L at low cutting speeds (60–120 m/min) was investigated using scanning electron microscopy. In this speed range, the coatings fail by fracture due to an adhesive wear mechanism. The fracture of the coating is described in detail, including the strong influence of Al-content and cutting speed on the rate of wear. Low Al-content (x ≤ 0.23) coatings showed worse wear resistance than high Al-content (x ≥ 0.53) samples. Less substrate is exposed when the cutting speed is increased, because of reduced adhesive wear. The TiN and Ti0.77Al0.23N coatings are severely worn for all cutting speeds while Ti0.47Al0.53N and Ti0.38Al0.62N remain essentially unaffected at the highest speed. The difference in wear behavior is interpreted as a difference in the fracture toughness of the coatings.

Av författaren/redakt...: Moreno, Maiara; Andersson, Jon M ...; M'Saoubi, Rachid; Kryzhanivskyy, V ...; Johansson-Jöesaa ...; Johnson, Lars J. ...; visa fler...; Odén, Magnus, 19 ...; Rogström, Lina; visa färre...

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