发明公开
EP2915892A1 Ni-Cr-Co-BASED ALLOY HAVING HIGH-TEMPERATURE CORROSION RESISTANCE PROPERTIES, AND POPPET VALVE HAVING SURFACE MODIFIED WITH SAME
有权
合金具有高温耐腐蚀性和板甲阀，其加工表面的Ni-Cr-Co基的
- 专利标题： Ni-Cr-Co-BASED ALLOY HAVING HIGH-TEMPERATURE CORROSION RESISTANCE PROPERTIES, AND POPPET VALVE HAVING SURFACE MODIFIED WITH SAME
- 专利标题（中）： 合金具有高温耐腐蚀性和板甲阀，其加工表面的Ni-Cr-Co基的
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申请号： EP13851676.0申请日： 2013-10-08
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公开(公告)号： EP2915892A1公开(公告)日： 2015-09-09
- 发明人: OTOBE, Katsunori , NISHIMURA, Shinichi , KURAHASHI, Kazunori , TAKAHASHI, Yoshihiro
- 申请人： Fukuda Metal Foil & Powder Co., Ltd. , Nittan Valve Co., Ltd.
- 申请人地址： 176 Nakanono-cho Matsubara-dori Muromachi Nishi-iru Shimogyo-ku Kyoto-shi Kyoto 600-8435 JP
- 专利权人： Fukuda Metal Foil & Powder Co., Ltd.,Nittan Valve Co., Ltd.
- 当前专利权人： Fukuda Metal Foil & Powder Co., Ltd.,Nittan Valve Co., Ltd.
- 当前专利权人地址： 176 Nakanono-cho Matsubara-dori Muromachi Nishi-iru Shimogyo-ku Kyoto-shi Kyoto 600-8435 JP
- 代理机构： Dannenberger, Oliver Andre
- 优先权： JP2012240724 20121031
- 国际公布： WO2014069180 20140508
- 主分类号： C22C27/06
- IPC分类号： C22C27/06 ; C22C30/00
摘要：
Provided are: a surface-coating material having excellent cracking resistance and peeling resistance and also having excellent high-temperature corrosion resistance properties; and a poppet valve coated with the surface-coating material. A Ni-Cr-Co-based alloy according to the present invention comprises 40.0 to 50.0 mass% of Cr, 10.0 to 20.0 mass% of Co, 0.5 to 5.0 mass% of Nb, 0.01 to 5.0 mass% of Fe and 0.1 to 3.0 mass% of Si, with the remainder being 26.0 to 40.0 mass% of Ni and unavoidable impurities. The Ni-Cr-Co-based alloy may additionally comprise one or more elements selected from Mo, W, Mn, Ti, Al, B and C in a total amount of 5.0 mass% or less, wherein the content of each of Ti and Al is 3.0 mass% or less and the content of each of B and C is 1.0 mass% or less. In the poppet valve according to the present invention, at least a face portion is coated with the Ni-Cr-Co-based alloy.
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