Exxon Research and Engineering Company

Exxonmobil Research and Engineering Company

Posco

Russell R Mueller

Michael Paul Anderson

Cary N Marzinsky

Liza M Monette

Arnold Lustiger

John P Dismukes

H Daniel Wagner

Hak-Cheol Lee

Ning Ma

Raghavan Ayer

Hyunwoo Jin

In-Shik Suh

Jong-Kyo Choi

Allen S Chiu

Improved steel compositions and methods of making the same are provided. The present disclosure provides advantageous wear resistant steel. More particularly, the present disclosure provides high manganese (Mn) steel having enhanced wear resistance, and methods for fabricating high manganese steel compositions having enhanced wear resistance. The advantageous steel compositions/components of the present disclosure improve one or more of the following properties: wear resistance, ductility, crack resistance, erosion resistance, fatigue life, surface hardness, stress corrosion resistance, fatigue resistance, and/or environmental cracking resistance. In general, the present disclosure provides high manganese steels tailored to resist wear and/or erosion.

Enhanced wear resistant steel and methods of making the same

A composite having fibers of relatively high elastic modulus embedded in a matrix of relatively low elastic modulus is provided with an interphase of elastic modulus less than the matrix modulus and cohesive energy higher than the matrix cohesive energy. The resulting composite has enhanced strength and toughness.

Composites with interphases and methods of making the same

Composite fiber reinforced structures, such as pipes or storage tanks, having improved resistance to microcracking and delamination and improved containment strength are disclosed. The walls of the structures comprise at least one layer comprising a plurality of continuous reinforcing glass fibers having an average diameter of &lE;about 10 microns impregnated in a resinous binder such as a thermoset epoxy resin.

Composite structures having improved containment strength

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Washington, NJ, United States of America

Russell R Mueller