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Investigation of crack susceptibility and microstructure of boron and silicon modified Rene 80 laser clad weld

Investigation of crack susceptibility and microstructure of boron and silicon modified Rene 80 laser clad weld
硼硅改性Rene 80激光熔覆焊缝裂纹敏感性和显微组织研究
批准号:
462262-2013
负责人:
Henein, Hani
金额:
$1.82万
依托单位:
依托单位国家:
加拿大
项目类别:
Engage Grants Program
财政年份:
2013
资助国家:
加拿大
项目状态:
已结题
起止时间:
2013-01-01 至 2014-12-31

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英文摘要
Precipitation hardening of high gamma-prime polycrystalline, directionally solidified and single crystal nickel based superalloys have been extensively used for the manufacture of high pressure turbine (HPT) blades and nozzle guide vanes (NGV) for several decades. However, despite their remarkable creep properties these engine components are prone to thermo-mechanical fatigue (TMF) cracking, oxidation and sulfidation due to severe service conditions. Thus, numerous welding technologies have been developed for repair of turbine engine components. Recently, Liburdi has developed new alloys (patents pending) to be used with laser welding technology for repair of these turbine blades.
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