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US 2006/0185770 A1Published application
Co-Cr-Mo-based alloy and production method therefor
AssigneeNHK Spring Co., Ltd.
InventorsYoshiki Ono, Masashi Sakamoto
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Abstract
A Co—Cr—Mo-based alloy includes: 63 mass %≦Co<68 mass %; 15 mass %≦Cr<26 mass %; 10 mass %≦Mo<19 mass %; and the balance of inevitable impurities, wherein the total amount of Cr and Mo is from 32 mass % to 37%. The mass magnetic susceptibility of the alloy is 7×4π·10−9 m3/kg or less at room temperature, and the Vickers hardness number (Hv) of the alloy is 400 or more.
Claims4
A Co—Cr—Mo-based alloy comprising:
- 63 mass %≦Co<68 mass %;
- 15 mass %≦Cr<26 mass %;
- 10 mass %≦Mo<19 mass %;
- and
- the balance of inevitable impurities;
- wherein the total amount of Cr and Mo is from 32 mass % to 37%, the mass magnetic susceptibility of the alloy is 7×4π·10−9 m3/kg or less at room temperature, and the Vickers hardness number (Hv) of the alloy is 400 or more.
3 more elements
A production method for a Co—Cr—Mo-based alloy, comprising:
- heating to a temperature of 1200 to 1300 degrees C. for at least 3 hours in an inert atmosphere.
Dependencies are inferred from the claim text.