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US 2019/0160595 A1Published application
Methods and compositions for making a near net shape article
OwnerBadri K. Narayanan, Michael Andrew Kottmaninventors
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Abstract
Methods and compositions for making a near net shape article are provided. The method includes depositing a first wire material using a wire fed additive manufacturing technique to form a near net shape article. The first wire material may be a Cr/Ni-rich composition or a Cr/Mn-rich composition. The additively manufactured near net shape article exhibits minimal distortion and good fatigue strength.
Claims16
A method of making a near net shape article, the method comprising:
- depositing a first wire material using a wire fed additive manufacturing technique to form a near net shape article,
- wherein the first wire material as deposited comprises a Cr/Ni-rich composition,
- wherein the as-deposited Cr/Ni-rich composition comprises:
- ≤0.06 wt % C;
- 3-7 wt % Ni;
- 9-14 wt % Cr;
- ≤1 wt % Mn;
- ≤1 wt % Si;
- ≤0.05 wt % Ti;
- ≤0.05 wt % Al;
- ≤0.05 wt % S;
- with the balance being Fe and incidental impurities.
9 more elements
A method of making a near net shape article, the method comprising:
- depositing a first wire material using a wire fed additive manufacturing technique to form a near net shape article,
- wherein the first wire material as deposited comprises a Cr/Mn-rich composition,
- wherein the as-deposited Cr/Mn-rich composition comprises:
- ≤0.1 wt % C;
- ≤1 wt % Ni;
- 8-13 wt % Cr;
- 4-10 wt % Mn;
- ≤1 wt % Si;
- ≤0.05 wt % Ti;
- ≤0.05 wt % Al;
- ≤0.05 wt % S;
- with the balance being Fe and incidental impurities.
9 more elements
Dependencies are inferred from the claim text.