A coated cutting tool for metal machining has a base body of cemented carbide, cermet, ceramics, steel or high-speed steel, and a wear resistant coating deposited thereon. The coating includes a layer of Ti.sub.1-xAl.sub.xC.sub.yN.sub.z with 0.40≤x≤0.95, 0≤y≤0.10 and 0.85≤z≤1.15, and a portion of MeC.sub.aN.sub.b, 0≤a≤1, 0≤b≤1, a+b=1, present on the layer of Ti.sub.1-xAl.sub.xC.sub.yN.sub.z. The portion of MeC.sub.aN.sub.b covers from 5 to 28% of the layer of Ti.sub.1-xAl.sub.xC.sub.yN.sub.z. A process for the production of the coated cutting tool and the use of the coated cutting tool in machining of stainless steel is also provided.

Provided are a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet; a Zn—Mg—Al plating layer provided on at least one surface of the base steel sheet; and an Fe—Al inhibition layer provided between the base steel sheet and the Zn—Mg—Al plating layer. The plating layer comprises, by weight %, 4 to 10% of Mg and 5.1-25% of Al and the remainder being Zn and unavoidable impurities with respect to components not including iron (Fe) diffused from the base steel sheet. The plating layer comprises a 24-50% MgZn.sub.2 phase in phase fraction. In the MgZn.sub.2 phase, an Al single phase is present in the ratio of 1-30% relative to the cross-sectional area of the total MgZn.sub.2 phase.

A cutting insert may include a base member and a coating layer thereon. The coating layer may include a first layer including a titanium compound on the base member, a second layer including alumina and an upper surface on the first layer, and a third layer including a titanium compound on the upper surface. The coating layer may include a crack at a top surface and therein. In a cross section orthogonal to the top surface, the crack may be present in the third layer and the second layer; in the third layer it may have a width of 1 μm or more. In the upper surface it may have a width of 0.5 μm or more—smaller than the width of the crack in the third layer. Another part may have a width of 0.2 μm or less closer to the base member than the upper surface.

A coated tool may include a base member and a coating layer. The coating layer may include a plurality of first AlTi layers indicated by Al.sub.1-x1Ti.sub.x1 and a plurality of second AlTi layers indicated by Al.sub.1-x2Ti.sub.x2. The coating layer may have alternating first AlTi layers and second AlTi layers, i.e. one upon another in a direction away from the base member, and x1 may be larger than x2. The plurality of first AlTi layers may include a first region having two or more adjacent first AlTi layers, where a first AlTi layer of the two or more adjacent first AlTi layers is located farther away from the base member and is smaller in thickness than a first AlTi layer of the two or more adjacent first AlTi layers located closer to the base member.

A process for manufacturing corrosion resistant metal components is disclosed. The process comprises abrasive blasting of a silicon-containing steel substrate followed by hot dip galvanizing, a second abrasive blasting process, treating with a mineral acid, and coating with a polymeric coating. The resulting corrosion resistance is enhanced.

A coated tool according to the present disclosure includes a base member and a coating layer located on the base member. The coating layer includes a first peak located in a range of 0° to 90° and a second peak located at a higher angle side than the first peak in a distribution of X-ray intensity indicated at α axis of a pole figure, the X-ray intensity regarding a plane of the cubic crystal. The coating layer further includes a valley part between the first peak and the second peak, and the valley part includes the X-ray intensity smaller than the X-ray intensity at each of the first peak and the second peak.

A coated tool according to the present disclosure includes a base member and a coating layer located on the base member. The coating layer includes a first peak located in a range of 15° to 30° and a second peak located in a range of 60° to 75° in a distribution of X-ray intensity indicated at a axis of a pole figure, the X-ray intensity regarding a plane of the cubic crystal. The coating layer includes a valley part between the first peak and the second peak, and the valley part includes the X-ray intensity smaller than the X-ray intensity at each of the first peak and the second peak. The X-ray intensity at the first peak is 0.7 times or greater of the X-ray intensity at the second peak.

A plated steel sheet for hot stamping including a base metal and a galvanized layer that is formed on a surface of the base metal, wherein the galvanized layer includes a galvannealed layer, a solidified zinc layer, and an oxide layer containing Al, in this order from the base metal, and a proportion of a content of Zn (g/m.sup.2) in the solidified zinc layer to a content of Zn (g/m.sup.2) in the galvanized layer is 10 to 95%.

A coated tool includes a base and a coating layer on the base. The coating layer includes a first layer including Al.sub.2O.sub.3 particles, and a second layer on the first layer. The second layer includes, sequentially from the base, a first film, a second film in contact with the first film, and a third film in contact with the second film. The first to third films individually include Ti. The first film, the second film and the third film individually include at least one kind selected from C and N. The coated tool satisfies a relationship of a first N content>a third N content>a second N content, in which the first N content is an N content in the first film, the second N content is an N content in the second film, and the third N content is an N content in the third film.

A coated tool may include a base member and a coating layer located on the base member. The coating layer may include a first section located on the base member and a second section located on the first section. The first section may include an AlTi portion including aluminum and titanium, and an AlCr portion including aluminum and chromium, and each of the AlTi portion and the AlCr portion may be in contact with the base member. The second section may include a plurality of AlTi layers including aluminum and titanium, and a plurality of AlCr layers including aluminum and chromium, and the AlTi layers and the AlCr layers may be located alternately one upon another.