A welded article includes at least two juxtaposed steel components, each having a tensile strength of at least 1200 MPa, and a weld joint between the juxtaposed steel components. The weld joint is characterized by a volume fraction in the range of 1% to 50% of an essentially homogenous dispersion of austenite having an average particle size in the range of 10 nanometers to 50 micrometers.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH
 The United States Government has rights in this invention pursuant to contract no. DE-AC05-000R22725 between the United States Department of Energy and UT-Battelle, LLC.