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Sintering steel-bonded carbide hard alloy
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TLDR
A sintered alloy comprising a carbide of preferably titanium and a steel matrix of an alloy steel containing chromium, molybdenum, copper and vanadium as alloying elements provides high temperature hardness and wear resistance as discussed by the authors.Abstract:
A sintered alloy comprising a carbide of preferably titanium and a steel matrix of an alloy steel containing chromium, molybdenum, copper and vanadium as alloying elements provide high temperature hardness and wear resistance. Preferred alloys contain 0.8 to 1.9% by weight of manganese and up to 80% by weight of carbide.read more
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Earth-boring bits
Prakash K. Mirchandani,Jimmy W. Eason,James J. Oakes,James C. Westhoff,Gabriel B. Collins,John H. Stevens,Steven G. Caldwell,Alfred J. Mosco +7 more
TL;DR: In this paper, a method for forming a bit body for an earth-boring bit is described, where the bit body may comprise hard particles, wherein the hard particles comprise at least one carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particle.
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Composite cutting inserts and methods of making the same
TL;DR: In this article, a method for producing a composite article is described, which consists of introducing a first powder metal grade from a feed shoe into a first portion of a cavity in a die and a second powder metal classifier from the feed shoe in a second portion of the cavity, where the first classifier differs from the second classifier in chemical composition or particle size.
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Articles having improved resistance to thermal cracking
TL;DR: In this paper, the authors present methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat-sink material having a thermal conductivity that is greater than the thermal conductivities of the carbide.
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Cemented carbide-metallic alloy composites
TL;DR: In this paper, a macroscopic composite sintered powder metal article including a first region including cemented hard particles, for example, cemented carbide, was described.
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Composite materials including nickel-based matrix materials and hard particles, tools including such materials, and methods of using such materials
TL;DR: In this article, a method for applying an abrasive wear-resistant material to a drill bit includes providing a bit, mixing sintered and cast tungsten carbide granules in a matrix material, heating the pre-application material to melt the matrix material and applying the material to the bit, and solidifying the material.
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Sintered steel-bonded carbide hard alloys
TL;DR: In this article, the hardness of the sinter is preserved when tempered if the steel matrix con tains from 0.5 to 3% of copper and the carbide is titanum carbide.