The Nanosteel Company, Inc.

United States Steel Corporation

Horizon Technology Finance Corporation

Kurtis Clark

Daniel James Branagan

Alla V Sergueeva

Grant G Justice

Sheng Cheng

Scott Larish

Brian E Meacham

Andrew T Ball

Andrew E Frerichs

Taylor L Giddens

Jason K Walleser

Logan J Tew

Scott T Anderson

Longzhou Ma

Tad V Machrowicz

Craig S Parsons

Jonathan M Cischke

Igor Yakubtsov

Patrick E Mack

Brian D Merkle

Alissa Peterson

Brian D Meacham

Justice G Grant

This disclosure relates to weldability of steel alloys that provide weld joints which retain hardness values in a heat affected zone adjacent to a fusion zone and which also have improved resistance to liquid metal embrittlement due to the presence of zinc coatings.

Welded advanced high strength steel

This disclosure is related to high yield strength steel where mechanical properties, such as elongation, ultimate tensile strength and yield strength in a sheet are maintained or enhanced via thermal treatment optionally provided during a galvanization coating operation.

High yield strength steel with mechanical properties maintained or enhanced via thermal treatment optionally provided during galvanization coating operations

This invention relates to prevention of delayed cracking of metal alloys during drawing which may occur from hydrogen attack. The alloys find applications in parts or components used in vehicles, such as bodies in white, vehicular frames, chassis, or panels.

Delayed cracking prevention during drawing of high strength steel

This disclosure is directed at methods for mechanical property improvement in a metallic alloy that has undergone one or more mechanical property losses as a consequence of forming an edge, such as in the formation of an internal hole or an external edge. Methods are disclosed that provide the ability to improve mechanical properties of metallic alloys that have been formed with one or more edges placed in the metallic alloy by a variety of methods which may otherwise serve as a limiting factor for industrial applications.

Edge formability in metallic alloys

Weldability improvements in advanced high strength steel

This disclosure is directed at methods for mechanical property improvement in a metallic alloy that has undergone one or more mechanical property losses as a consequence of shearing, such as in the formation of a sheared edge portion or a punched hole. Methods are disclosed that provide the ability to improve mechanical properties of metallic alloys that have been formed with one or more sheared edges which may otherwise serve as a limiting factor for industrial applications.

This disclosure deals with steel alloys containing mixed microconstituent structure that has the ability to provide ductility at tensile strength levels at or above 900 MPa. More specifically, the alloys contain Fe, B, Si and Mn and indicate tensile strengths of 900 MPa to 1820 MPa and elongations of 2.5% to 76.0%.

High ductility steel alloys with mixed microconstituent structure

The present disclosure is directed and formulations and methods to provide alloys having relative high strength and ductility. The alloys may be provided in seamless tubular form and characterized by their particular alloy chemistries and identifiable crystalline grain size morphology. The alloys are such that they include boride pinning phases. In what is termed a Class 1 Steel the alloys indicate tensile strengths of 700 MPa to 1400 MPa and elongations of 10-70%. Class 2 Steel indicates tensile strengths of 800 MPa to 1800 MPa and elongations of 5-65%. Class 3 Steel indicates tensile strengths of 1000 MPa to 2000 MPa and elongations of 0.5-15%.

Classes of steels for tubular products

This disclosure deals with a class of metal alloys with advanced property combinations applicable to metallic sheet production. More specifically, the present application identifies the formation of metal alloys of relatively high strength and ductility and the use of one or more cycles of elevated temperature treatment and cold deformation to produce metallic sheet at reduced thickness with relatively high strength and ductility.

Recrystallization, refinement, and strengthening mechanisms for production of advanced high strength metal alloys

The present disclosure is directed at metal alloys and methods of processing with application to slab casting methods and post-processing steps towards sheet production. The metals provide unique structure and exhibit advanced property combinations of high strength and/or high ductility.

Growing community of inventors

Idaho Falls, ID, United States of America

Kurtis Clark