Title:
Laser additional repair of nickel base super alloy parts
Document Type and Number:
Japanese Patent JP6005850
Kind Code:
B2
Abstract:
Ni base superalloy components containing relatively large amounts of Al and Ti are known to be difficult to build up by a weld build up process without cracking. As the Al and Ti content of the superalloy is increased to improve the strength, the susceptibility to cracking is increased. It is shown herein that reducing the Gamma' phase in the additive built up material improves robustness against cracking. A stepwise, controlled heating and cooling process is described to be used in cooperation with an additive build up process to reduce the Gamma' present and thereby reduce cracking.
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Inventors:
Kazim Ozbaisal
Application Number:
JP2015511797A
Publication Date:
October 12, 2016
Filing Date:
May 13, 2013
Export Citation:
Assignee:
Siemens Energy Incorporated
International Classes:
B23K26/34; B23K15/00; B23K26/21; B23K26/342; F01D5/28; F01D25/00; F02C7/00
Domestic Patent References:
| JP5192785A | ||||
| JP2002524268A | ||||
| JP2011083822A | ||||
| JP2011214541A | ||||
| JP2001269784A | ||||
| JP9506039A |
Foreign References:
| US4804815 | ||||
| US6124568 | ||||
| US20020148817 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Takashi Watanabe
Shinya Mitsuhiro
Takashi Watanabe
Shinya Mitsuhiro