| 发明名称 | Method of fatigue testing a component | ||
| 摘要 | A method of fatigue testing a component comprising the steps of machining a channel of predetermined depth and predetermined width in a surface of a component, applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, placing the component in an atmosphere containing air and sulphur dioxide at a predetermined temperature for a predetermined period of time to precondition the grain boundaries, and fatigue testing the component. The method is useful for determining the fatigue life of gas turbine engine discs or gas turbine engine rotor blades particularly the firtree shaped disc posts or the firtree shaped rotor blade roots. | ||
| 申请公布号 | US9170182(B2) | 申请公布日期 | 2015.10.27 |
| 申请号 | US201313857549 | 申请日期 | 2013.04.05 |
| 申请人 | ROLLS-ROYCE PLC | 发明人 | Gibson Grant;Leggett Andrew Jonathan |
| 分类号 | G01L1/22;G01N3/34 | 主分类号 | G01L1/22 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A method of fatigue testing a component comprising the steps of: a) providing a component having a surface and machining a channel of predetermined depth and predetermined width in the surface of the component such that the channel has a closed bottom, a first side, and a second side and is open at the surface of the component, b) applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, c) placing the component in a corrosive atmosphere for a predetermined period of time at a predetermined temperature to precondition the grain boundaries, and d) fatigue testing the component. | ||
| 地址 | London GB | ||