Abstract: A cutting tool comprises a substrate and a coating layer provided on the substrate, the coating layer including a multilayer structure layer composed of a first unit layer and a second unit layer, and a lone layer, the lone layer including cubic TizAl1-zN crystal grains, an atomic ratio z of Ti in the TizAl1-zN being 0.55 or more and 0.7 or less, the lone layer having a thickness with an average value of 2.5 nm or more and 10 nm or less, the multilayer structure layer having a thickness with an average value of 10 nm or more and 45 nm or less, one multilayer structure layer and one lone layer forming a repetitive unit having a thickness with an average value of 20 nm to 50 nm, a maximum value of 40 nm to 60 nm, and a minimum value of 10 nm to 30 nm.

Abstract: A coated tool may include a base member having a first surface and a coating layer may be located on the first surface. The coating layer may include a first layer having a plurality of ?-Al2O3 crystal particles. At least one of the ?-Al2O3 crystal particles has at least two regions with different orientations from each other.

Abstract: The present invention relates generally to a coated jewelry article or a coated component of a jewelry article, comprising a jewelry article or a component of a jewelry article, a first metallic coating, and a second metallic coating.

Abstract: A coated tool may include a base member and a coating layer located on the base member. The coating layer may include an alternating layer having first layers and second layers. The first layers may contain (TibNbdMe)CxN1-x (where M is one or more kinds selected from metals of Groups 4, 5 and 6 in the periodic table except for Ti and Nb, and Al, 0.2?b?0.8, 0.01?d?0.2, 0?e?0.7, b+d+e=1 and 0<x<1). The second layers may contain M?N (where M? is metal of Groups 4, 5 and 6 in the periodic table except for Nb).

Abstract: Provided is a coated cutting tool that has a nitride hard coating that contains Ti at 70 at % to 95 at % and Si at 5 at % to 30 at % with respect to the total amount of metallic elements, and Ar at 0.05 at % to 0.20 at % with respect to the total amount of metallic and non-metallic elements, has a NaCl-type crystalline structure, exhibits maximum diffraction peak intensity in the (200) plane, and has an average grain size of 5 nm to 30 nm. When 100 at % is defined as the total of content rates of the metallic elements, nitrogen, oxygen, and carbon in a composition at intervals of 20 nm from a depth of 20 nm to 200 nm from a surface of the hard coating, the content rate of nitrogen is 50.0 at % or more.

Abstract: A cutting tool comprising a substrate and a coating layer formed on the substrate, wherein the coating layer has, from a side closer to the substrate, a lower layer that contains a compound having a composition represented by (AlxTi1-x)N, and an upper layer that is formed on the lower layer and contains a compound having a composition represented by (AlyTi1-yN; the average thickness of the lower layer is 1.0 ?m or more and 10.0 ?m or less; the average thickness of the upper layer is 1.0 ?m or more and 10.0 ?m or less; and an area ratio GOSi of crystal grains having a GOS value of 1 degree or lower in the lower layer and an area ratio GOSs of crystal grains having a GOS value of 1 degree or lower in the upper layer satisfy GOSi<GOSs.

Abstract: A coated cutting tool comprising a substrate comprising a cubic boron nitride sintered body and a coating layer formed on the substrate, wherein the coating layer comprises a Ti carbonitride layer comprising Ti(CxN1-x); an average thickness of the Ti carbonitride layer is 0.5 ?m or more and 5.0 ?m or less; in the Ti carbonitride layer, R75 is higher than R25; in the Ti carbonitride layer, a texture coefficient TC (111) of a (111) plane is 1.0 or more and 2.0 or less; and in X-ray diffraction measurement of the Ti carbonitride layer, an absolute value of a difference between a maximum value and a minimum value of 2? is 0.1° or less on the (111) plane when the measurement is performed at each of ? angles of 0°, 30°, 50° and 70°.

Abstract: A surface-coated cutting tool includes a base material and a coating covering the base material. The base material includes a rake face and a flank face. The coating includes a TiCN layer. The TiCN layer has a (422) orientation in a region d1 in the rake face. The TiCN layer has a (311) orientation in a region d2 in the flank face.

Abstract: The present disclosure relates to a cutting tool including a cemented carbide substrate having WC, gamma phase and a binder phase. The substrate is provided with a binder phase enriched surface zone, which is depleted of gamma phase, wherein no graphite and no ETA phase is present in the microstructure and wherein the binder phase is a high entropy alloy.

Abstract: A coated cutting tool includes a substrate and a coating of one of more layers. The coating includes a layer of ?-Al2O3 of a thickness of 1-20 ?m deposited by chemical vapour deposition (CVD). The ?-Al2O3 layer exhibits an X-ray diffraction pattern and wherein the texture coefficient TC(h k 1) is defined according to the Harris formula, wherein 1<TC(0 2 4)<4 and 3<TC(0 0 12)<6.

Abstract: A hard material includes a first hard phase containing titanium carbonitride as a major constituent and a binder phase containing an iron group element as a major constituent. In any surface or cross-section of the hard material, the grain size D50 at a cumulative percentage of 50% of a grain size distribution by area of the first hard phase is 1.0 ?m or more, and the average aspect ratio of first hard phase particles having grain sizes larger than or equal to D50 is 2.0 or less.

Abstract: A surface-coated cutting tool includes a base material and a coating covering the base material. The base material includes a rake face and a flank face. The coating includes a TiCN layer. The TiCN layer has a (311) orientation in a region d1 in the rake face. The TiCN layer has a (422) orientation in a region d2 in the flank face.

Abstract: Provided is a cutting tool including a base material and a coating layer provided on the base material, the coating layer including a titanium carbonitride layer provided on the base material, an intermediate layer provided on the titanium carbonitride layer in contact therewith, and an alumina layer provided on the intermediate layer in contact therewith, the intermediate layer being composed of a compound made of titanium, carbon, oxygen, and nitrogen, the intermediate layer having a thickness of more than 1 ?m, when PN1 atomic % represents an atomic ratio of the nitrogen in an interface between the intermediate layer and the alumina layer, and PN2 atomic % represents an atomic ratio of the nitrogen at a point A away from the interface by 1 ?m on a side of the intermediate layer, a ratio PN1/PN2 of the PN1 to the PN2 being more than or equal to 1.03.

Abstract: Provided is an SiC composite substrate 10 having a monocrystalline SiC layer 12 on a polycrystalline SiC substrate 11, wherein: some or all of the interface at which the polycrystalline SiC substrate 11 and the monocrystalline SiC layer 12 are in contact is an unmatched interface I12/11 that is not lattice-matched; the monocrystalline SiC layer 12 has a smooth obverse surface and has, on the side of the interface with the polycrystalline SiC substrate 11, a surface that has more pronounced depressions and projections than the obverse surface; and the close-packed plane (lattice plane 11p) of the crystals of the polycrystalline SiC in the polycrystalline SiC substrate 11 is randomly oriented with reference to the direction of a normal to the obverse surface of the monocrystalline SiC layer 12. The present invention improves the adhesion between the polycrystalline SiC substrate and the monocrystalline SiC layer.

Abstract: A coated cutting tool for chip forming machining of metals includes a substrate having a surface coated with a chemical vapour deposition (CVD) coating. The substrate is coated with a coating having a layer of ?-Al2O3, wherein the ?-Al2O3 layer exhibits a texture coefficient TC(0 0 12)?7.2 and wherein the ratio of I(0 0 12)/I(0 1 14)?0.8. The coating further includes a MTCVD TiCN layer located between the substrate and the ?-Al2O3 layer. The MTCVD TiCN layer exhibits a pole figure, as measured by EBSD, in a portion of the MTCVD TiCN layer parallel to the outer surface of the coating and less than 1 ?m from the outer surface of the MTCVD TiCN, wherein a pole plot based on the data of the pole figure, with a bin size of 0.25° over a tilt angle range of 0°???45° from the normal of the outer surface of the coating shows a ratio of intensity within ??15° tilt angle to the intensity within 0°???45° of ?45%.

Abstract: A coated tool may include a base member and a coating layer located on the base member. The coating layer may include a plurality of AlTi layers and a plurality of AlCr layers. The AlTi layers may include at least one kind selected from nitride, carbide or carbonitride, each including aluminum and titanium. The AlCr layers may include at least one kind selected from nitride, carbide or carbonitride, each including aluminum and chromium. The coating layer may include a laminate structure in which the AlTi layers and the AlCr layers are alternately laminated one upon another. The AlCr layers may include a first AlCr layer and a second AlCr layer located farther away from the base member than the first AlCr layer. A content ratio of chromium in the second AlCr layer may be higher than a content ratio of chromium in the first AlCr layer.

Abstract: A coated cutting tool of a cemented carbide substrate made of WC, a metallic binder phase and a gamma phase has a well distributed gamma phase and a reduced amount of abnormal WC grains. Further, the coated cutting tool is provided with a CVD coating of TiCN and an ?-Al2O3 layer, wherein the ?-Al2O3 layer exhibits a texture coefficient TC(0 0 12)?7.2 and wherein in the ratio I(0 0 12)/I(0 1 14)?1. The coated cutting tool has an increased resistance against plastic deformation. whilst maintaining toughness.

Abstract: A cutting tool including a rake face, a flank face, and a cutting edge portion, comprising a substrate and an AlTiN layer, the AlTiN layer including cubic AlxTi1-xN crystal grains, Al having an atomic ratio x of 0.7 or more and less than 0.95, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (200) oriented crystal grains at a ratio of 80% or more, the central portion at the cutting edge portion being occupied in area by (200) oriented crystal grains at a ratio of 50% or more and less than 80%.

Abstract: To improve the adhesion resistance and wear resistance of a surface-coated cutting tool. The surface-coated cutting tool includes a tool substrate, and a single-component coating layer composed of a composite nitride of Cr (chromium), Al (aluminum), and V (vanadium) and disposed on the surface of the tool substrate. The composite nitride is characterized by being represented by a compositional formula: CraAlbVcN satisfying the following relations: 0.11?a?0.26; 0.73?b?0.85; 0<c?0.04; and a+b+c?1 (wherein a, b, and c each represent an atomic proportion). The single-component coating layer has both a hexagonal phase and a cubic phase.

Abstract: Materials and a process for forming a protective oxide coating. The high temperature coating system (108) includes at least a thermal barrier coating layer (104) and a thermally stable, deposit resistant protective layer (106) on the thermal barrier coating layer (104).