IIW recommendations for the HFMI treatment for improving the fatigue strength of welded joints par Marquis, G., Barsoum, Zuheir

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Particle strengthening of metals and alloys par Nembach, E. (Eckhard)

Introduction to strengthening mechanisms. par Felbeck, David K.

New ways of increasing the strength of metals ISI publication (Iron and Steel Institute.) par Ivanova, Vera Semenovna