Abstract: A wear resistant component includes a matrix portion made of metal, and a core that is embedded in the matrix portion and is higher in hardness than the matrix portion. The core has a shape that follows a shape of at least a portion of a surface of the matrix portion.

Abstract: A wear resistant component (1) includes a matrix portion (10) made of metal, and a framework portion (20) that is embedded in the matrix portion (10) and is higher in hardness than the matrix portion (10). The framework portion (20) has a three-dimensional lattice structure formed with a plurality of bar-shaped members 31, and has a shape that follows a shape of at least a portion of a surface (11-18, 10C) of the matrix portion (10).

Abstract: A laminate including at least layers A to C in this order, wherein an integrated value from 0 mm to 50 mm of displacement calculated from a load-displacement diagram obtained by carrying out a tensile property test method is 1.0 Nm (=J) or more; and an adhesive strength between the layer B and the layer C is 10 N/25 mm or more.

Abstract: A tooth, which is a wear-resistant component, includes a core, and a body made of a first metal and disposed to enclose the core. The core includes a matrix made of a second metal, first hard particles dispersed in the matrix, and a hard structure extending from the corresponding first hard particle in a direction along the grain flow in the body, the hard structure being higher in hardness than the matrix.

Abstract: A sprocket wheel, which is a machine component configured to slide relative to a bushing while being in contact with the bushing in an outer peripheral surface, includes a base made of a first metal, and an overlay that covers the base so as to constitute the outer peripheral surface. The surface of the overlay constituting the outer peripheral surface has been smoothed. Such a smoothed surface of the overlay makes the sprocket wheel less damaging to the bushing.

Abstract: A sprocket wheel, which is an example of the machine component, includes a base made of a first metal, and an overlay disposed in contact with the base to cover at least a part of a surface of the base. The overlay includes a matrix made of a second metal, and hard particles dispersed in the matrix. The overlay includes a protrusion that protrudes toward the base in a region including the interface between the overlay and the base.

Abstract: A sprocket wheel has an annular shape. The sprocket wheel has a plurality of projections formed on an outer peripheral surface for transmitting a driving force to a track. The sprocket wheel includes a base made of a first metal, and an overlay including a second metal that covers the base so as to constitute at least a part of the outer peripheral surface. The overlay is formed with a metallic structure that is continuous in the circumferential direction so as to connect between adjacent ones of the projections.

Abstract: A sprocket wheel, which is an example of the machine component, includes a base made of a first metal, and an overlay disposed in contact with the base to cover at least a part of a surface of the base. The overlay includes a matrix made of a second metal, and hard particles dispersed in the matrix. The surface of the overlay is a forged surface. The hard particles located in an overlay surface region within an average particle diameter of the hard particles from the surface of the overlay are arranged side by side while being embedded in the overlay.

Abstract: The lug bar includes a base, having a bar shape and made of a first metal, and an overlay, extending along the longitudinal direction of the base to cover a covered region as a part of the outer peripheral surface of the base. In an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region of the surface of the base, the exposed region and the surface of the overlay are flush with each other to form a forged surface.

Abstract: A tooth which is an example of a wear-resistant component includes a base made of a first metal, and an overlay disposed in contact with the base to cover a covered region that is a part of a surface of the base. In an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region on the surface of the base, the exposed region and a surface of the overlay are flush with each other to form a forged surface.

Abstract: A tooth, which is a wear-resistant component, includes a core, and a body made of a first metal and disposed to enclose the core. The core includes a matrix made of a second metal, first hard particles dispersed in the matrix, and a hard structure extending from the corresponding first hard particle in a direction along the grain flow in the body, the hard structure being higher in hardness than the matrix.

Abstract: To provide a resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, from which a formed product such as a sheet or a film, having excellent transparency and impact resistance, can be obtained. A resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, which satisfies the following (A) to (D): (A) the content ratio (mass) of the conjugated diene is from 22 to 32%, (B) the block ratio of the vinyl aromatic hydrocarbon is from 90 to 98%, (C) Mw/Mn (wherein Mw is the weight average molecular weight and Mn is the number average molecular weight) is from 1.1 to 1.6 obtained by GPC by differential refractive index method, (D) the loss tangent (tan ?) obtained by dynamic viscoelasticity measurement has one local maximum value (tan ? (max)) within a temperature range of from ?90 to ?30° C., and tan ? (tan ? (max+30° C.)) at a temperature higher by 30° C.

Abstract: The lug bar includes a base, having a bar shape and made of a first metal, and an overlay, extending along the longitudinal direction of the base to cover a covered region as a part of the outer peripheral surface of the base. In an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region of the surface of the base, the exposed region and the surface of the overlay are flush with each other to form a forged surface.

Abstract: A sprocket wheel, which is an example of the machine component, includes a base made of a first metal, and an overlay disposed in contact with the base to cover at least a part of a surface of the base. The overlay includes a matrix made of a second metal, and hard particles dispersed in the matrix. The surface of the overlay is a forged surface. The hard particles located in an overlay surface region within an average particle diameter of the hard particles from the surface of the overlay are arranged side by side while being embedded in the overlay.

Abstract: A sprocket wheel, which is an example of the machine component, includes a base made of a first metal, and an overlay disposed in contact with the base to cover at least a part of a surface of the base. The overlay includes a matrix made of a second metal, and hard particles dispersed in the matrix. The overlay includes a protrusion that protrudes toward the base in a region including the interface between the overlay and the base.

Abstract: A sprocket wheel has an annular shape. The sprocket wheel has a plurality of projections formed on an outer peripheral surface for transmitting a driving force to a track. The sprocket wheel includes a base made of a first metal, and an overlay including a second metal that covers the base so as to constitute at least a part of the outer peripheral surface. The overlay is formed with a metallic structure that is continuous in the circumferential direction so as to connect between adjacent ones of the projections.

Abstract: A tooth which is an example of a wear-resistant component includes a base made of a first metal, and an overlay disposed in contact with the base to cover a covered region that is a part of a surface of the base. In an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region on the surface of the base, the exposed region and a surface of the overlay are flush with each other to form a forged surface.

Abstract: A sprocket wheel, which is a machine component configured to slide relative to a bushing while being in contact with the bushing in an outer peripheral surface, includes a base made of a first metal, and an overlay that covers the base so as to constitute the outer peripheral surface. The surface of the overlay constituting the outer peripheral surface has been smoothed. Such a smoothed surface of the overlay makes the sprocket wheel less damaging to the bushing.

Abstract: To provide a resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, from which a formed product such as a sheet or a film, having excellent transparency and impact resistance, can be obtained. A resin composition containing a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene, which satisfies the following (A) to (D): (A) the content ratio (mass) of the conjugated diene is from 22 to 32%, (B) the block ratio of the vinyl aromatic hydrocarbon is from 90 to 98%, (C) Mw/Mn (wherein Mw is the weight average molecular weight and Mn is the number average molecular weight) is from 1.1 to 1.6 obtained by GPC by differential refractive index method, (D) the loss tangent (tan ?) obtained by dynamic viscoelasticity measurement has one local maximum value (tan ? (max)) within a temperature range of from ?90 to ?30° C., and tan ? (tan ? (max+30° C.)) at a temperature higher by 30° C.

Abstract: Disclosed is a thermally shrinkable laminated film which is produced by laminating an intermediate layer comprising a block copolymer resin composition containing a specific block copolymer directly between a front layer and a back layer each comprising a polyester resin, and which has good interlayer adhesion strength. Specifically disclosed is a thermally shrinkable laminated film which is produced by stretching a three-layered laminated sheet along at least one axis so that the interlayer adhesion strength becomes 0.6 N/15 mm or more, wherein the three-layered laminated sheet has an intermediate layer and a front layer and a back layer, the intermediate layer comprises a resin composition comprising two types of block copolymers each having a specific structure and a specific composition at a predetermined mass ratio, and each of the front layer and the back layer comprises a polyester resin.