Abstract
The strength of as-deposited steel weld metal, as a function of temperature, strain rate, microstructure, and alloy chemistry, has been factorized into components due to the intrinsic strength of pure iron, solid solution strengthening, and a microstructural component. The latter consists of components due to allotriomorphic ferrite, Widmanstatten ferrite, and acicular ferrite. Using published data on the strength of pure iron and that due to solid solution strengthening, coefficients for microstructural strengthening have been derived by matching experimental data to theory. It is demonstrated that the method used is widely applicable in terms of alloy chemistry and welding conditions.
Published Version
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