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公开(公告)号：US11376817B2
公开(公告)日：2022-07-05
申请号：US16931927
申请日：2020-07-17
申请人： Kennametal Inc.
发明人： Martin G. Perez , Michael J. Meyer , Qingjun Zheng
IPC分类号： B32B15/01 , B32B15/18 , C22C29/08 , B32B18/00 , B32B7/05 , C22C38/08 , B32B7/027 , C22C19/03 , C22C1/04 , B32B15/16 , C22C19/07 , C22C38/10
摘要： 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.
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公开(公告)号：US11247268B2
公开(公告)日：2022-02-15
申请号：US16783564
申请日：2020-02-06
申请人： Kennametal Inc.
发明人： Qingjun Zheng , Yixiong Liu , James A. Faust , Mark J. Rowe , Danie J. De Wet , Sudharsan Subbaiyan , Michael J. Meyer
IPC分类号： B22F7/00 , B22D23/06 , B23K35/30 , B23K35/02 , B22F5/10 , C22C1/10 , C22C29/02 , C22C32/00 , B22F3/10 , C22C9/01 , C22C9/06 , C22C9/10 , C22C14/00 , C22C19/05 , C22C19/07 , C22C38/22 , C22C38/36 , C22C38/38 , B22F7/06
摘要： In one aspect, methods of making freestanding metal matrix composite articles and alloy articles are described. A method of making a freestanding composite article described herein comprises disposing over a surface of the temporary substrate a layered assembly comprising a layer of infiltration metal or alloy and a hard particle layer formed of a flexible sheet comprising organic binder and the hard particles. The layered assembly is heated to infiltrate the hard particle layer with metal or alloy providing a metal matrix composite, and the metal matrix composite is separated from the temporary substrate. Further, a method of making a freestanding alloy article described herein comprises disposing over the surface of a temporary substrate a flexible sheet comprising organic binder and powder alloy and heating the sheet to provide a sintered alloy article. The sintered alloy article is then separated from the temporary substrate.
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公开(公告)号：US20140271318A1
公开(公告)日：2014-09-18
申请号：US13832635
申请日：2013-03-15
申请人： KENNAMETAL INC.
发明人： Qingjun Zheng , Yixiong Liu , James A. Faust , Mark J. Rowe , Danie J. De Wet , Sudharsan Subbaiyan , Michael J. Meyer
CPC分类号： B22F7/008 , B22D23/06 , B22F3/10 , B22F5/106 , B22F2005/103 , B22F2007/066 , B22F2301/10 , B22F2301/15 , B22F2301/205 , B22F2301/35 , B22F2302/10 , B22F2302/253 , B22F2302/45 , B23K35/0222 , B23K35/0244 , B23K35/3033 , B23K35/304 , C22C1/1015 , C22C9/01 , C22C9/06 , C22C9/10 , C22C14/00 , C22C19/058 , C22C19/07 , C22C29/02 , C22C32/0047 , C22C38/22 , C22C38/36 , C22C38/38
摘要： In one aspect, methods of making freestanding metal matrix composite articles and alloy articles are described. A method of making a freestanding composite article described herein comprises disposing over a surface of the temporary substrate a layered assembly comprising a layer of infiltration metal or alloy and a hard particle layer formed of a flexible sheet comprising organic binder and the hard particles. The layered assembly is heated to infiltrate the hard particle layer with metal or alloy providing a metal matrix composite, and the metal matrix composite is separated from the temporary substrate. Further, a method of making a freestanding alloy article described herein comprises disposing over the surface of a temporary substrate a flexible sheet comprising organic binder and powder alloy and heating the sheet to provide a sintered alloy article. The sintered alloy article is then separated from the temporary substrate.
摘要翻译： 一方面，描述制造独立金属基复合制品和合金制品的方法。 制造本文所述的独立复合制品的方法包括在临时衬底的表面上设置包括渗透金属或合金层的层状组件以及由包含有机粘合剂和硬颗粒的柔性片形成的硬颗粒层。 加热层状组件以提供金属或合金以提供金属基质复合材料渗透硬颗粒层，并将金属基质复合物与临时衬底分离。 此外，制造本文所述的独立式合金制品的方法包括在临时基材的表面上设置包含有机粘合剂和粉末合金的柔性片材，并加热片材以提供烧结合金制品。 然后将烧结合金制品与临时基材分离。
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公开(公告)号：US10562101B2
公开(公告)日：2020-02-18
申请号：US15413964
申请日：2017-01-24
申请人： Kennametal Inc.
发明人： Qingjun Zheng , Yixiong Liu , James A. Faust , Mark J. Rowe , Danie J. De Wet , Sudharsan Subbaiyan , Michael J. Meyer
IPC分类号： B22F7/00 , B22D23/06 , B23K35/30 , B23K35/02 , B22F5/10 , C22C1/10 , C22C29/02 , C22C32/00 , B22F3/10 , C22C9/01 , C22C9/06 , C22C9/10 , C22C14/00 , C22C19/05 , C22C19/07 , C22C38/22 , C22C38/36 , C22C38/38 , B22F7/06
摘要： In one aspect, methods of making freestanding metal matrix composite articles and alloy articles are described. A method of making a freestanding composite article described herein comprises disposing over a surface of the temporary substrate a layered assembly comprising a layer of infiltration metal or alloy and a hard particle layer formed of a flexible sheet comprising organic binder and the hard particles. The layered assembly is heated to infiltrate the hard particle layer with metal or alloy providing a metal matrix composite, and the metal matrix composite is separated from the temporary substrate. Further, a method of making a freestanding alloy article described herein comprises disposing over the surface of a temporary substrate a flexible sheet comprising organic binder and powder alloy and heating the sheet to provide a sintered alloy article. The sintered alloy article is then separated from the temporary substrate.
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公开(公告)号：US20140272446A1
公开(公告)日：2014-09-18
申请号：US13834682
申请日：2013-03-15
申请人： KENNAMETAL INC.
CPC分类号： B32B15/043 , B32B3/266 , B32B15/18 , B32B15/20 , B32B2457/00 , Y10T428/12007
摘要： In one aspect, articles are described herein comprising wear-resistant claddings. An article described herein, in some embodiments, comprises a metallic substrate and a cladding adhered to the substrate, the cladding including a metal matrix composite layer comprising at least one hard particle tile having a pore structure infiltrated with matrix metal or matrix alloy. Infiltration of the pore structure of the hard particle tile by the matrix metal or alloy can render the tile fully dense or substantially fully dense.
摘要翻译： 在一个方面，本文描述了包括耐磨包层的制品。 在一些实施例中，本文所述的制品包括金属基底和附着到基底的包层，所述包层包括金属基质复合层，所述金属基质复合层包含至少一个具有渗透基质金属或基质合金的孔结构的硬质颗粒瓦。 通过基质金属或合金渗透硬质颗粒瓦的孔结构可使瓷砖完全致密或基本完全致密。
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