Relationship of multifractal characteristics of fracture surface structures in molybdenum to its mechanical properties

A quantitative technique of material structure analysis based on interpretation of multifractal formalism is described. The technique also permits evaluating the uniformity and latent periodicity of structures under study. This new method was used to investigate relationships of multifractal characteristics of structure of static fracture surfaces in wires of commercial molybdenum and a low molybdenum alloy (Mo-0.1HfC-0.1HfN-0.03C) to mechanical properties of mentioned materials after various surface treatments (drawing, electropolishing, abrasive finishing). Relative changes of multifractal characteristics are shown to correlate well with values of relative changes in tensile properties and fatigue life. 26 refs.; 1 fig