Environmental Effects on the Fatigue Behavior of Conventionally and Additively Manufactured Metallic Materials

Dear Colleagues,

For this Special Issue, we are inviting recent advances in the comprehension of environmental effects on the fatigue behavior of metallic materials. Experimental, theoretical, and numerical studies aimed at incorporating the research outcomes into design approaches for the fatigue assessment of structural components and mechanical parts are welcomed.

The environment plays a crucial role in dictating the fatigue strength of metallic component exposed to the simultaneous actions of corrosive environment and time-varying stresses. For instance, the synergistic effect of corrosion and fatigue is known to reduce the fatigue strength to an extent even larger than the reduction in fatigue strength caused by the notch effect exerted by corrosion pits. In addition, stress corrosion cracking, hydrogen embrittlement, and galvanic effects can further complicate this damaging scenario. The current state-of-art knowledge of these phenomena is still deficient, also in view of the lack of standardized testing conditions. On the other hand, the advent of emerging technologies, like additive manufacturing or welding of dissimilar materials, will bring to operating conditions materials with very complicated corrosion–fatigue behavior. A meaningful example thereof is the growing interest in additively manufacturing biomedical implants with cellular lattice structures, thus exposing in the aggressive human environment components with extremely high surface-to-volume ratios.

We hope to receive many propositions to provide a high impact for this Special Issue and to stimulate essential collaborations between materials scientists, technologists, and mechanical designers.

Prof. Dr. Vigilio Fontanari
Dr. Matteo Benedetti
Dr. Stefano Rossi
Guest Editors

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