发明名称 |
Titanium alloy turbine blade |
摘要 |
<p>It is an objective of the present invention to provide an effective use of the friction stir processing (FSP) technology for Ti-alloy turbine blades with a long radial length, and provide a Ti-alloy turbine blade having both high erosion resistance and high long term reliability. There is provided a turbine blade made of an α-β titanium alloy having an average Vickers hardness of 320 Hv or less, the turbine blade having a leading edge, in which: the turbine blade includes, at the leading edge thereof, a first hardened surface region having a thickness of from 0.5 to 3.0 mm and having an average Vickers hardness of 340 Hv or more; and the first hardened surface region is formed by friction stir processing a surface region of the leading edge of the turbine blade.
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申请公布号 |
EP2469032(A3) |
申请公布日期 |
2014.03.12 |
申请号 |
EP20110195796 |
申请日期 |
2011.12.27 |
申请人 |
HITACHI LTD. |
发明人 |
IMANO, SHINYA;KAMOSHIDA, HIRONORI;HIRANO, SATOSHI;MURATA, KENICHI;PARK, SEUNGHWAN;ASAI, KUNIO;YOSHIDA, TAKEHIKO |
分类号 |
F01D5/28 |
主分类号 |
F01D5/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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