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Compositions and fabrication methods for hardmetals

A technology for mixtures, superalloys, applied in the direction of carbides, tungsten/molybdenum carbides, etc.

Inactive Publication Date: 2005-03-09
竹箐工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nickel-based superalloys can be in the γ-γ’ metallurgical phase

Method used

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  • Compositions and fabrication methods for hardmetals
  • Compositions and fabrication methods for hardmetals
  • Compositions and fabrication methods for hardmetals

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Embodiment Construction

[0015] The importance of cemented carbide compositions is that they directly affect the technical performance of cemented carbide in its intended application field, as well as the processing conditions and equipment used in the process of preparing such cemented carbide. The cemented carbide composition can also directly affect the cost of the cemented carbide raw material, as well as costs related to the method of preparation. For these reasons and others, the cemented carbide industry has made extensive efforts to develop technically superior and economically useful cemented carbide compositions. Described herein are, among other features, cemented carbide material compositions comprising selected binder matrix materials which together yield performance advantages.

[0016] The material composition of cemented carbides of interest includes: various hard particles and various binder matrix materials. Generally speaking, hard particles can be made of metal carbides of Group I...

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Abstract

Hardmetal compositions each including hard particles having a first material and a binder matrix having a second, different material comprising rhenium or a Ni-based superalloy. A two-step sintering process may be used to fabricate such hardmetals at relatively low sintering temperatures in the solid-state phase to produce substantially fully-densified hardmetals.

Description

[0001] This application claims priority to the following patent applications: U.S. Utility Patent Application 10 / 453,085, filed June 2, 2003, and two U.S. Provisional Applications, 60 / 439,838, filed January 13, 2003 and 2003 60 / 449, 305 submitted on February 20, both titled "Hardmetal Compositions with Novel Binder Compositions". Background of the invention [0002] This application relates to cemented carbide compositions, methods of their preparation, and related applications. [0003] Cemented carbide includes a variety of composite materials, specifically hard and refractory materials, which also exhibit high wear resistance. Examples of widely used cemented carbides include sintered or carburized carbides or carbonitrides, or combinations of these materials. Some cemented carbides, known as cermets, may include in their composition processed cermet particles (eg TiC) bonded with binder metal particles. Certain cemented carbide compositions have been documented in the te...

Claims

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Application Information

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IPC IPC(8): C01B32/949C22C1/05C22C29/02C22C29/06C22C29/08C22C29/16
CPCB22F3/16C22C29/02C22C29/08B22F2998/10C22C29/06B22F2999/00C22C29/005B22F2998/00C22C29/067C22C29/16B22F3/15B22F3/1007B22F2201/10B22F9/04B22F2201/20C22C1/05
Inventor 刘效融
Owner 竹箐工程有限公司
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