PROBLEM
Strong yet ductile steel would be beneficial in the automotive, gas and oil sectors, but those traits typically are balanced rather than combined. The larger the grain in steel, the greater strain it can accommodate, but traditional efforts to increase grain size decreases the strength. Expensive equipment can sometimes add ductility back, but it isn’t always successful.
SOLUTION
Purdue University researchers have tested a new surface grinding technique on T-91, a high-quality steel alloy used in nuclear and petrochemical applications. The treatment produced metal grains that stretch, rotate and elongate under strain, adding super-plasticity to the metal.
PRIMARY INVESTIGATOR
Xinghang Zhang, professor of materials engineering
IN THE MEDIA
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INNOVATION DISCLOSURE
Innovation Disclosure
LICENSING CONTACTS
Email: otcip@prf.org
MEDIA CONTACT
Email: Steve Martin // sgmartin@prf.org
QUOTE
“A new, cost-effective method for surface grinding has been created by scientists at Purdue University. This method improves the mechanical properties of metals, particularly high-quality steel alloys, by achieving a balance between strength and plasticity.” – Parag Vasekar, Business Development and Licensing Manager – Physical Sciences