Micro- and Macro-Approach to the Fatigue Crack Propagation in High-Strength Pearlitic Steel Wires

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This paper analyzes how the cold drawing process influences the fatigue behaviour of eutectoid steel, with special emphasis on the role of microstructural changes induced during such a manufacturing process. Fatigue cracks are transcollonial and exhibit a preference for fracturing pearlitic lamellae, with non-uniform crack opening displacement values, micro-discontinuities, branchings, bifurcations and frequent local deflections that create microstructural roughness. The net fatigue surface increases with cold drawing due to the higher angle of crack deflections.

Info:

Periodical:

Key Engineering Materials (Volumes 348-349)

Edited by:

J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel

Pages:

681-684

Citation:

J. Toribio et al., "Micro- and Macro-Approach to the Fatigue Crack Propagation in High-Strength Pearlitic Steel Wires ", Key Engineering Materials, Vols. 348-349, pp. 681-684, 2007

Online since:

September 2007

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$38.00

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