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The titanium alloy, titanium, a separator, a cell, a solid polymer type fuel cell 发明授权

2022-06-06 3150 238K 0

专利信息

申请日期 2025-02-25 申请号 JP2017518164
公开(公告)号 JP6308330B2 公开(公告)日 2018-04-11
公开国别 JP 申请人省市代码 全国
申请人 新日鐵住金株式会社
简介 A titanium material which is provided with a base material and a coating film that is formed on the surface of the base material. The base material contains, in mass%, 0.005%-0.15% of a platinum group element, 0.0005% or more but less than 0.002% of a rare earth element, 0-1.0% of Ni, 0-0.5% of Mo, 0-0.5% of V, 0-0.5% of Cr and 0-0.5% of W, with the balance made up of Ti and impurities. The α phase of the base material has an average crystal grain size of more than 25 μm but 300 μm or less. The coating film is mainly composed of titanium oxide and a platinum group element, and has a thickness of 50 nm or less. This titanium material has low contact resistance after repeated application of a load, while exhibiting excellent moldability.


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