Breakthrough in specific strength, heat resistance, and corrosion resistance will be achieved through multi-scale structure control of grain size, second phase, and texture as well as establishing characterization techniques of structure and property in nano-micro scale.
Targets are 1) Mg alloy with ductility and formability comparable to Al alloys, 2) heat resistant steel that realizes 50K higher service temperature than the current one, and 3) Cu and Ni-less corrosion resistant steel that has 1/10 of corrosion rate
Some seeds and competences are;
- Ductility enhancement by 5 times in Mg alloys through texture control by multiple shear processing.
- Doubling high-temperature creep strength at 923K in ferritic steel utilizing nano-size precipitates along grain boundaries.
- Structural and chemical HRTEM analysis of nano-size oxides, which makes clear the nature of the stabilized rust layer of recently developed Al-Si steel.