United States Steel Corporation

The Nanosteel Company, Inc.

Craig S Parsons

Daniel James Branagan

Brian E Meacham

Alla V Sergueeva

Grant G Justice

Sheng Cheng

Andrew T Ball

Scott Larish

Kurtis Clark

Andrew E Frerichs

Tad V Machrowicz

Taylor L Giddens

Logan J Tew

Scott T Anderson

Jonathan M Cischke

Jason K Walleser

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

Weldability improvements in advanced high strength steel

Metallic alloys are disclosed containing Fe at 48.0 to 81.0 atomic percent, B at 2.0 to 8.0 atomic percent, Si at 4.0 to 14.0 atomic percent, and at least one or more of Cu, Mn or Ni, wherein the Cu is present at 0.1 to 6.0 atomic percent, Mn is present at 0.1 to 21.0 atomic percent and Ni is present at 0.1 to 16.0 atomic percent. The alloys may be heated at temperatures of 200&#xb0; C. to 850&#xb0; C. for a time period of up to 1 hour and upon cooling there is no eutectoid transformation. The alloys may then be formed into a selected shape.

Class of warm forming advanced high strength steel

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Lake Orion, MI, United States of America

Craig S Parsons