“…), the chromium nitride (CrN) coatings not only have high hardness, good wear resistance, and chemical inertness, as well as superior oxidation resistance up to 700 °C, but they also can relatively easily achieve relatively high thickness without the stress problem, which have been rapidly developed by some PVD techniques in recent years including arc ion plating (AIP), ion beam assisted deposition, magnetron sputtering, and so on. − ,,, Lin et al have successfully fabricated thick and dense CrN/AlN superlattice coatings (up to 10 μm) with good adhesion and superhardness by the modulated pulse power magnetron sputtering technique . Compared with other deposition technologies, arc ion plating (AIP) technology is an outstanding method and preferred by industrial produce for hard coating due to the high ionization ratio, high deposition rate, flexibility of target arrangements, and merits of producing coating with good coating–substrate adhesion. , Shan et al reported that Cr/Cr 2 N/CrN multilayer coating synthesized by multiarc ion plating with a thickness of 24.4 μm exhibited good anticorrosion and tribological performances . Wan et al have successfully fabricated the CrN/GLC coating on GCr15 steel with a total thickness of about 38 μm …”