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公开(公告)号：US20160002766A1
公开(公告)日：2016-01-07
申请号：US14569298
申请日：2014-12-12
发明人： Sung-Chul Cha , Seung-Hyun Hong , Moon-Ki Bae
CPC分类号： C23C14/0641 , B22C9/061 , B22C9/12 , C23C14/0057 , C23C14/022 , C23C14/22 , C23C14/34 , C23C14/352 , C23C16/44 , C23C28/044 , C23C28/048 , F01D5/02 , F01D5/288 , F05D2220/40 , F05D2230/90 , F05D2300/174
摘要： Disclosed are a coating layer having excellent low-friction ability at a high temperature and a method of forming the coating layer. The high-temperature low-fiction coating layer may improve heat resistance, fatigue resistance, low-friction ability, and seizure resistance of the turbine wheel of a turbocharger and the parts sliding at a high temperature in the exhaust system of an engine, improve turbo-lag, and improve durability of the high-temperature parts in the exhaust system of an engine. The high-temperature low-friction coating layer includes: a CrN bonding layer 110 disposed on a nitrified base material 100; a TiAlCrYN nano-multi-support layer 120 disposed on the CrN bonding layer 110 to achieve heat resistance, fatigue resistance, wear resistance, and toughness of the coating layer; and a TiAlCrYCN nano-multi-function layer 130 disposed on the TiAlCrYN nano-multi-support layer 120 to achieve heat resistance, oxidation resistance, seizure resistance, toughness, and low-friction ability of the coating layer.
摘要翻译： 公开了在高温下具有优异的低摩擦能力的涂层和形成涂层的方法。 高温低分子涂层可以提高涡轮增压器的涡轮机叶轮和发动机排气系统中在高温下滑动的部件的耐热性，耐疲劳性，低摩擦能力和抗咬合性，改善涡轮增压 并且提高发动机的排气系统中的高温部件的耐久性。 高温低摩擦涂层包括：设置在硝化基材100上的CrN粘合层110; 设置在CrN接合层110上以实现涂层的耐热性，耐疲劳性，耐磨性和韧性的TiAlCrYN纳米多支撑层120; 以及设置在TiAlCrYN纳米多支撑层120上的TiAlCrYCN纳米多功能层130，以实现涂层的耐热性，抗氧化性，耐咬合性，韧性和低摩擦能力。
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公开(公告)号：US10060014B2
公开(公告)日：2018-08-28
申请号：US14918257
申请日：2015-10-20
发明人： Sung-Chul Cha , Si-Yup Lee , Young-Sang Ko , Moon-Ki Bae , Seung-Hyun Hong
摘要： A bearing steel includes 1.0 to 1.3 wt % carbon; 0.9 to 1.6 wt % silicon; 0.5 to 1.0 wt % manganese; 1.5 to 2.5 wt % nickel; 1.5 to 2.5 wt % chromium; 0.2 to 0.5 wt % molybdenum; 0.01 to 0.06 wt % aluminum; 0.01 to 0.1 wt % copper; at least one selected from the group consisting of more than 0 wt % and less than 0.38 wt % vanadium and more than 0 wt % and less than 0.02 wt % niobium; and a balance of iron.
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公开(公告)号：US09957595B2
公开(公告)日：2018-05-01
申请号：US14920766
申请日：2015-10-22
发明人： Sung-Chul Cha , Moon-Ki Bae , Seung-Hyun Hong , Si-Yup Lee
IPC分类号： C22C38/54 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/04 , C22C38/02 , C22C38/00 , C21D1/58 , C23C8/22 , C23C8/80
CPC分类号： C22C38/54 , C21D1/58 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C23C8/22 , C23C8/80
摘要： A carburized alloy steel includes, based on a total weight of the carburized alloy steel, 0.1 to 0.35 wt % carbon, 0.1 to 2.0 wt % silicon, 0.1 to 1.5 wt % manganese, 1.5 to 3.0 wt % chromium, 0.2 to 0.5 wt % molybdenum, greater than 0 to 0.07 wt % niobium, and a balance of iron.
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