Machining method for 1Cr12Ni2WMoVNb martensitic stainless steel gas turbine blade

The invention provides a machining method for a 1Cr12Ni2WMoVNb martensitic stainless steel gas turbine blade. The grain size of the machined gas turbine blade can reach the fifth level or above. The method comprises the following steps: step A, first-fire forging: loading the gas turbine blade into...

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Bibliographische Detailangaben
Hauptverfasser:	YUAN DAQING, SU DAN, PAN LIJUN, WEN JINMING, YIN LIN, QIN QIN, LI ZONGKE, KUAI XIAOYU, CHEN SUDONG, DING XUEJING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention provides a machining method for a 1Cr12Ni2WMoVNb martensitic stainless steel gas turbine blade. The grain size of the machined gas turbine blade can reach the fifth level or above. The method comprises the following steps: step A, first-fire forging: loading the gas turbine blade into an electric furnace, heating the gas turbine blade to 1100-1130 DEG C, preserving heat for 30-45 minutes, discharging the gas turbine blade out of the electric furnace, air-cooling the gas turbine blade, and forging the gas turbine blade; step B, quenching: loading the forged gas turbine blade into an electric furnace, heating to 1150 DEG C, preserving heat for 10-45 minutes, and then discharging and air-cooling; and C, tempering is conducted, specifically, the quenched gas turbine blade is loaded into an electric furnace to be heated to 720 DEG C, and after heat preservation is conducted for 2 hours, the gas turbine blade is discharged out of the furnace and subjected to air cooling. 本发明提供了一种用于1Cr12Ni2WMoVNb马氏体型不锈