ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The depth distribution of the residual stress in graded (Ti, Al) N coating deposited on steelby arc ion plating was measured by the Stripping Layer Substrate Curvature Technique, and the effectof graded (Ti, Al) N and mono-layered (Ti, Al)N coating on the fatigue properties of1Cr11Ni2W2MoV stainless steel were investigated. The depth distribution of the residual stress inmono-layered Ti70Al30N and TiN were also measured for comparison. The results show that theresidual stresses in the coatings are compressive, which increase gradually from the coating/substrateinterface and reach a maximum value at the middle region, then decrease until the surface. Comparedwith TiN and Ti70Al30N, the stress maximum value in the graded coating is nearer to the coatingsurface. It is also shown that the fatigue strength of the graded (Ti, Al)N and Ti70Al30N coatedsamples are superior to that of the uncoated substrate. The improvement of the fatigue properties forthe coated samples is thought to be attributed to the hard coatings with high compressive stress
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.595-598.223.pdf
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