Invention Grant
- Patent Title: Wear resistant articles and applications thereof
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Application No.: US16931927Application Date: 2020-07-17
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Publication No.: US11376817B2Publication Date: 2022-07-05
- Inventor: Martin G. Perez , Michael J. Meyer , Qingjun Zheng
- Applicant: Kennametal Inc.
- Applicant Address: US PA Latrobe
- Assignee: Kennametal Inc.
- Current Assignee: Kennametal Inc.
- Current Assignee Address: US PA Latrobe
- Agent Larry R. Meenan
- Main IPC: B32B15/01
- IPC: B32B15/01 ; B32B15/18 ; C22C29/08 ; B32B18/00 ; B32B7/05 ; C22C38/08 ; B32B7/027 ; C22C19/03 ; C22C1/04 ; B32B15/16 ; C22C19/07 ; C22C38/10

Abstract:
Wear resistant articles are described herein which, in some embodiments, mitigate CTE differences between wear resistant components and metallic substrates. In one aspect, an article comprises a layer of sintered cemented carbide bonded to a layer of iron-based alloy via a metal-matrix composite bonding layer, wherein coefficients of thermal expansion (CTE) of the sintered cemented carbide layer, metal matrix composite bonding layer, and iron-based alloy layer satisfy the relation: x = ( C T E WC - C T E M M C ) ( C T E M M C - C T E Fe ) wherein 0.5≤x≤2 and CTE WC, CTE MMC and CTE Fe are the CTE values for the sintered cemented carbide, metal matrix composite, and iron-based alloy in 1/K respectively at 900° C. to 1100° C.
Public/Granted literature
- US20210031492A1 WEAR RESISTANT ARTICLES AND APPLICATIONS THEREOF Public/Granted day:2021-02-04
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