SwePub
Sök i LIBRIS databas

  Utökad sökning

WFRF:(Odén L.)
 

Sökning: WFRF:(Odén L.) > Mechanical properti...

Mechanical properties and machining performance of Ti1-x AlxN-coated cutting tools

Hörling, Anders (författare)
Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
Hultman, Lars (författare)
Linköpings universitet,Tunnfilmsfysik,Tekniska högskolan
Odén, Magnus (författare)
Luleå tekniska universitet,Materialvetenskap,Division of Engineering Materials, The Sirius Laboratory, Luleå University of Technology, Luleå, Sweden
visa fler...
Sjölén, J. (författare)
SECO Tools, Fagersta,SECO Tools AB
Karlsson, L. (författare)
SECO Tools, Fagersta,Seco Tools AB
visa färre...
 (creator_code:org_t)
Elsevier BV, 2005
2005
Engelska.
Ingår i: Surface & Coatings Technology. - : Elsevier BV. - 0257-8972 .- 1879-3347. ; 191:2-3, s. 384-392
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • The mechanical properties and machining performance of Ti1−xAlxN-coated cutting tools have been investigated. Processing by arc evaporation using cathodes with a range of compositions was performed to obtain coatings with compositions x=0, x=0.25, x=0.33, x=0.50, x=0.66 and x=0.74. As-deposited coatings with x≤0.66 had metastable cubic structures, whereas x=0.74 yielded two-phase coatings consisting of cubic and hexagonal structures. The as-deposited and isothermally annealed coatings were characterised by nanoindentation, scanning electron microscopy (SEM) and X-ray diffraction (XRD). Cutting tests revealing tool wear mechanisms were also performed. Results show that the Al content, x, promotes a (200) preferred crystallographic orientation and has a large influence on the hardness of as-deposited coatings. The high hardness (37 GPa) and texture of the as-deposited Ti1−xAlxN coatings are retained for annealing temperatures up to 950 °C, which indicates a superior stability of this system compared to TiN and Ti(C,N) coatings. We propose that competing mechanisms are responsible for the effectively constant hardness: softening by residual stress relaxation through lattice defect annihilation is balanced by hardening from formation of a coherent nanocomposite structure of c-TiN and c-AlN domains by spinodal decomposition. This example of secondary-phase transformation (age-) hardening is proposed as a new route for advanced surface engineering, and for the development of future generation hard coatings.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Annan materialteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Other Materials Engineering (hsv//eng)
NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

Engineering Materials
Materialteknik
Hard coatings; TiAlN; Age hardening; Spinodal decomposition; Transition; Metal nitrides
Condensed matter physics

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Sök utanför SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy