Corrosion-resistant turbine blade and production process thereof
A steam turbine blade and production process technology, applied in the direction of blade support components, mechanical equipment, manufacturing tools, etc., to achieve the effect of improving impact toughness and weakening the segregation of alloy elements
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Embodiment 1
[0048] A corrosion-resistant steam turbine blade provided in this embodiment has the following mass percentages of chemical components: C: 0.31%, Si: 0.11%, Mn: 0.69%, Ni: 0.61%, Cr: 96%, V: 0.15%, Nb: 0.16%, Cu: 0.07%, Al: 0.22%, Ti: 0.13%, Sb: 0.77%, Co: 0.82%, S: 0.03%, P:: 0.01%, rare earth metal: 0.09%, and the balance is Fe;
[0049] The chemical composition mass percentage of rare earth metals is: cerium: 7%, praseodymium: 8%, neodymium: 14%, gadolinium: 7%, dysprosium: 4%, europium: 1%, terbium: 11%, holmium: 6%, Yu The amount is lanthanum.
[0050] Terbium: 10%, holmium: 4%, and the balance is lanthanum.
[0051] The production process of the corrosion-resistant steam turbine blade provided in this example is carried out according to the following procedures: hot forging→annealing→blade mechanical processing→stress relief heat treatment→quenching and tempering heat treatment→surface strengthening heat treatment→physical and chemical inspection→ultrasonic flaw detect...
Embodiment 2
[0060] A corrosion-resistant steam turbine blade provided in this embodiment has the following mass percentages of chemical components: C: 0.29%, Si: 0.12%, Mn: 0.72%, Ni: 0.62%, Cr: 9.7%, V: 0.16%, Nb: 0.18%, Cu: 0.05%, Al: 0.23%, Ti: 0.14%, Sb: 0.75%, Co: 0.87%, S: 0.0:2%, P≤0.02%, rare earth metal: 0.12%, balance is Fe;
[0061] The chemical composition mass percentage of rare earth metals is: cerium: 8%, praseodymium: 6%, neodymium: 15%, gadolinium: 5%, dysprosium: 2%, europium: 3%, terbium: 9%, holmium: 5%, Yu The amount is lanthanum.
[0062] The production process of the corrosion-resistant steam turbine blade provided in this example is carried out according to the following procedures: hot forging→annealing→blade mechanical processing→stress relief heat treatment→quenching and tempering heat treatment→surface strengthening heat treatment→physical and chemical inspection→ultrasonic flaw detection→clean packaging; wherein:
[0063] After hot forging, the temperature i...
Embodiment 3
[0071] A corrosion-resistant steam turbine blade provided in this embodiment has the following mass percentages of chemical components: C: 0.30%, Si: 0.13%, Mn: 0.73%, Ni: 0.60%, Cr: 9.5%, V: 0.17%, Nb: 0.17%, Cu: 0.06%, Al: 0.21%, Ti: 0.15%, Sb: 0.76%, Co: 0.88%, S: 0.0:25%, P: 0.015%, rare earth metal: 0.11%, balance is Fe;
[0072] The chemical composition mass percentage of rare earth metals is: cerium: 9%, praseodymium: 7%, neodymium: 13%, gadolinium: 6%, dysprosium: 3%, europium: 2%, terbium: 10%, holmium: 4%, Yu The amount is lanthanum.
[0073] The production process of the corrosion-resistant steam turbine blade provided in this example is carried out according to the following procedures: hot forging→annealing→blade mechanical processing→stress relief heat treatment→quenching and tempering heat treatment→surface strengthening heat treatment→physical and chemical inspection→ultrasonic flaw detection→clean packaging; wherein:
[0074] After hot forging, the temperatu...
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