Disclosed is a TiN-based sintered body and a cutting tool made of the TiN-based sintered body, which has 70 to 94 area % of a TiN phase, 1 to 25 area % of a Mo.sub.2C phase, and a remainder including a binder phase. The binder phase contains Fe and Ni whose total area ratio is 5 to 15 area %, and an amount of Ni to a total amount of Fe and Ni is 15 to 35 mass %. When an X-ray diffraction profile is measured in the cross section of the TiN-based sintered body, the diffraction peaks of TiN, Mo.sub.2C and FeNi having an fcc structure are present, but the diffraction peaks of FeNi having a bcc structure, a Fe.sub.3Mo.sub.3C phase, and a Fe.sub.3Mo.sub.3N phase are absent. The lattice constant of the TiN is 4.235 to 4.245 , and that of the FeNi having an fcc structure is 3.58 to 3.62 .

The invention relates to a method for producing a metal component coated by a hard-material coating, which method comprises the method steps of preparing an anti-caking agent, adding the prepared anti-caking agent to a powder mixture, providing the powder mixture, providing the substrate made of metal, heating the powder and the substrate in a heating device, depositing a coating on the substrate, the coating having a higher hardness than the substrate, and cooling the substrate.

A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of less than 20 W.Math.m.sup.1.Math.K.sup.1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a coarse grain size represented by a grain size number of 5 or less defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having high fracture resistance in addition to high wear resistance, as well as the cutting tool including the sintered body are provided.

A sintered body includes cubic boron nitride grains as hard phase grains, and has a thermal conductivity of less than 20 W.Math.m.sup.1.Math.K.sup.1, for cutting a nickel-based heat-resistant alloy formed of crystal grains having a coarse grain size represented by a grain size number of 5 or less defined by ASTM standard E112-13. A cutting tool includes this sintered body. Accordingly, the sintered body having high fracture resistance in addition to high wear resistance, as well as the cutting tool including the sintered body are provided.

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.

A bulk permanent magnetic material may include between about 5 volume percent and about 40 volume percent Fe.sub.16N.sub.2 phase domains, a plurality of nonmagnetic atoms or molecules forming domain wall pinning sites, and a balance soft magnetic material, wherein at least some of the soft magnetic material is magnetically coupled to the Fe.sub.16N.sub.2 phase domains via exchange spring coupling. In some examples, a bulk permanent magnetic material may be formed by implanting N+ ions in an iron workpiece using ion implantation to form an iron nitride workpiece, pre-annealing the iron nitride workpiece to attach the iron nitride workpiece to a substrate, and post-annealing the iron nitride workpiece to form Fe.sub.16N.sub.2 phase domains within the iron nitride workpiece.

A bulk permanent magnetic material may include between about 5 volume percent and about 40 volume percent Fe.sub.16N.sub.2 phase domains, a plurality of nonmagnetic atoms or molecules forming domain wall pinning sites, and a balance soft magnetic material, wherein at least some of the soft magnetic material is magnetically coupled to the Fe.sub.16N.sub.2 phase domains via exchange spring coupling. In some examples, a bulk permanent magnetic material may be formed by implanting N+ ions in an iron workpiece using ion implantation to form an iron nitride workpiece, pre-annealing the iron nitride workpiece to attach the iron nitride workpiece to a substrate, and post-annealing the iron nitride workpiece to form Fe.sub.16N.sub.2 phase domains within the iron nitride workpiece.