Invention Grant
- Patent Title: Process for design and manufacture of cavitation erosion resistant components
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Application No.: US14809857Application Date: 2015-07-27
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Publication No.: US10281903B2Publication Date: 2019-05-07
- Inventor: Lili Zheng , Wei Yuan , Harsha Badarinarayan
- Applicant: Hitachi, Ltd
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, PC
- Main IPC: C22F1/04
- IPC: C22F1/04 ; G05B19/4099 ; C21D8/00 ; C22F1/10 ; C22F1/06 ; C22F1/08 ; C22F1/18 ; C22C1/00

Abstract:
A process for designing and manufacturing a cavitation erosion resistant component. The process includes selecting a base material for use in a cavitation erosion susceptible environment and conducting a uniaxial loading test on a sample of the selected material. Thereafter, atomic force microscopy (AFM) topography on a surface of the tested sample is conducted and used to provide a surface strain analysis. The process also includes crystal plasticity finite element modeling (CPFEM) of uniaxial loading and CPFEM nanoindentation of the selected material over a range of values for at least one microstructure parameter. A subrange of microstructure parameter values that correlate to CPFEM nanoindentation results that provide increased CE resistance is determined. Finally, a component having an average microstructure parameter value that falls within the subrange of microstructure parameter values is manufactured.
Public/Granted literature
- US20170031351A1 PROCESS FOR DESIGN AND MANUFACTURE OF CAVITATION EROSION RESISTANT COMPONENTS Public/Granted day:2017-02-02
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