Engineering Compositionally and Microstructurally Complex Alloys (CaMCA) with Superior Corrosion Resistance and Ultra-High Strength
Abstract
Abstract:The objective of this research program is to design a compositionally complex alloy (CCA) withcommodity metal elements, having higher mechanical strength than 304 stainless steel (ambitiously targeting a 10x in yield strength) and superior corrosion resistance (more noble pitting potentials and higher critical pitting temperatures). We propose to begin with a prototype CCA already developed at Ohio State University that utilizes commodity and precious metals to obtain exceptional corrosion resistance. We will undertake a thermodynamic and atomistic modeling program to identify new element combinations that will replace the use of precious metals while maintaining strong corrosion resistance. We will also explore the potential for heat treatments to utilize precipitation hardening, solid-solution strengthening and work-hardening to obtain ultrahigh strength. The program will generate new alloy materials with high corrosion resistance and high strength. The program will also advance the capability for integrated computational materials engineering (ICME) approaches to expedite the process of alloy design with respect to corrosion.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 26, 2018
- Source ID
- N000141812577
Entities
People
- Christopher Taylor
Organizations
- Office of Naval Research
- Ohio State University
- United States Navy