Effect of CrAIN coating properties on impact fatigue of tool steel

被引：9
作者：
Bobzin, K. [1 ]
Kalscheuer, C. [1 ]
Tayyab, M. [1 ]
机构：
[1] Rhein Westfal TH Aachen, Surface Engn Inst, Kackertstr 15, D-52072 Aachen, Germany
来源：
SURFACE & COATINGS TECHNOLOGY | 2023年 / 471卷
关键词：
PVD; CrAlN; Cyclic impact; Plastic deformation; Fatigue crack; Damage mechanism; PLASTIC-DEFORMATION; PVD-COATINGS; BEHAVIOR; STRESS;
D O I：
10.1016/j.surfcoat.2023.129869
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The tools in forming processes are subjected to cyclic impact loads. Physical vapor deposition (PVD) coatings can potentially improve the service life of such tools, given the effect of coating properties on impact fatigue of coated substrate is well-understood. Previous investigations on the cyclic impact loading of PVD coated tool steels mainly correlate the plastic deformation of the substrate to the resulting coating cracks. Hereby, the effect of underlying elastic-plastic coating deformation mechanism in combination with coating properties needs further clarification. Therefore, the current work aims to investigate the combined effect of thickness, morphology, elastic-plastic deformation and residual stress state of the coating on the impact fatigue behavior of coated tool steel substrates. For this purpose, (Cr90Al10)N and (Cr66Al34)N coatings, each with a thickness of s = - 1.7 & mu;m and s = -3.5 & mu;m, were deposited on HS6-5-2C substrates. In addition to coating characterization, the residual stresses were measured by focused ion beam-digital image correlation (FIB-DIC) ring-core method. The elastic-plastic deformation of the coatings was studied by nanoindentation. The coated samples were subjected to cyclic impact loading with an initial hertzian contact pressure pH = - 9.7 GPa and frequency f = 50 Hz for N = 0.1, 0.5 and 1 million impacts. The impact imprints were analyzed using high resolution electron microscopy to study the coating deformation mechanism in combination with fatigue cracks initiation. Columnar inclination and shear gliding along the column boundaries resulted in the initiation of fatigue cracks in the coating around the boundary region of impact imprint. The chemical composition, morphology, residual stress state and elasticplastic deformation behavior of the coating cumulatively affected the impact fatigue as thick coatings showed reduced resistance against initiation of fatigue cracks. The investigation contributes to adjusting the PVD coating thickness and resulting coating properties for higher tool service life in applications involving cyclic impact loading.
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相关论文
共 15 条
[1]  
Bobzin K, 2021, PHYS MESOMECH, V24, P625, DOI [10.1134/S1029959921050143, 10.24412/1683-805X-2021-5-138-146]
[2]   On the plastic deformation of chromium-based nitride hard coatings deposited by hybrid dcMS/HPPMS: A fundamental study using nanoscratch test [J].
Bobzin, K. ;
Broegelmann, T. ;
Kruppe, N. C. ;
Arghavani, M. ;
Mayer, J. ;
Weirich, T. E. .
SURFACE & COATINGS TECHNOLOGY, 2016, 308 :298-306
[3]   Thin hard coatings fracture propagation during the impact test [J].
Bouzakis, KD ;
Siganos, A ;
Leyendecker, T ;
Erkens, G .
THIN SOLID FILMS, 2004, 460 (1-2) :181-189
[4]   Analysis of wear mechanisms of hot forging tools protected with hybrid layers performed by nitriding and PVD coatings deposition [J].
Gronostajski, Zbigniew ;
Kaszuba, Marcin ;
Widomski, Pawel ;
Smolik, Jerzy ;
Ziemba, Jacek ;
Hawryluk, Marek .
WEAR, 2019, 420 :269-280
[5]   Plastic deformation in nanocrystalline TiN at ultra-low stress: An in situ nanoindentation study [J].
Jian, Jie ;
Lee, Joon Hwan ;
Liu, Yue ;
Khatkhatay, Fauzia ;
Yu, Kaiyuan ;
Su, Qing ;
Zhang, Xinghang ;
Jiao, Liang ;
Wang, Haiyan .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 650 :445-453
[6]   Residual stress evaluation at the micrometer scale: Analysis of thin coatings by FIB milling and digital image correlation [J].
Korsunsky, Alexander M. ;
Sebastiani, Marco ;
Bemporad, Edoardo .
SURFACE & COATINGS TECHNOLOGY, 2010, 205 (07) :2393-2403
[7]   Focused ion beam ring drilling for residual stress evaluation [J].
Korsunsky, Alexander M. ;
Sebastiani, Marco ;
Bemporad, Edoardo .
MATERIALS LETTERS, 2009, 63 (22) :1961-1963
[8]   Structure and properties of PVD-coatings by means of impact tester [J].
Lugscheider, E ;
Knotek, O ;
Wolff, C ;
Bärwulf, S .
SURFACE & COATINGS TECHNOLOGY, 1999, 116 :141-146
[9]   Improvement of the tribological behaviour of PVD nanostratified TiN/CrN coatings - An explanation [J].
Mendibide, C. ;
Steyer, P. ;
Fontaine, J. ;
Goudeau, P. .
SURFACE & COATINGS TECHNOLOGY, 2006, 201 (07) :4119-4124
[10]   AN IMPROVED TECHNIQUE FOR DETERMINING HARDNESS AND ELASTIC-MODULUS USING LOAD AND DISPLACEMENT SENSING INDENTATION EXPERIMENTS [J].
OLIVER, WC ;
PHARR, GM .
JOURNAL OF MATERIALS RESEARCH, 1992, 7 (06) :1564-1583
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