ONE-WAY COAGULATED PRODUCT, TURBINE ROTOR BLADE AND METHOD FOR REPAIRING ONE-WAY COAGULATED PRODUCT

To provide a method for repairing a relatively deep crack in a one-way coagulated product.SOLUTION: A method for repairing a one-way coagulated product comprises: forming a groove part that overlaps only one of a plurality of crystal grain boundaries, for a base material formed of a one-way coagulat...

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Hauptverfasser:	KOMURO HIROTAKA, TSUKIMOTO KOJI, TACHIBANA TAKAHIRO, MEGA MASAHIKO, TANIGAWA HIDETSUGU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION WEAPONS
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Beschreibung
Zusammenfassung:	To provide a method for repairing a relatively deep crack in a one-way coagulated product.SOLUTION: A method for repairing a one-way coagulated product comprises: forming a groove part that overlaps only one of a plurality of crystal grain boundaries, for a base material formed of a one-way coagulated alloy in which the plurality of crystal grain boundaries are aligned in one direction; and forming, at the groove part, a welded part formed of a metal which is a composition similar to the base metal and is used for welding with the base metal.SELECTED DRAWING: Figure 3 【課題】一方向凝固物における比較的深い亀裂の補修方法を提供する。【解決手段】一実施形態に係る一方向凝固物の補修方法は、複数の結晶粒界が一方向に並んだ一方向凝固合金により形成される母材に対して、前記複数の結晶粒界のうち一の結晶粒界にのみ重なる開先部を形成するステップと、前記開先部に前記母材と共金であり、該母材との溶接に用いる金属により形成される溶接部を形成するステップと、を備える。【選択図】図３