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Fatigue Performance Of High-Temperature Deep-Rolled Metallic Materials, P Juijerm, I Altenberger
Fatigue Performance Of High-Temperature Deep-Rolled Metallic Materials, P Juijerm, I Altenberger
Journal of Metals, Materials and Minerals
High-temperature deep rolling was developed from conventional deep rolling (deep rolling at room temperature) and performed on various metallic materials, such as austenitic stainless steel AISI 304, normalized plain carbon steel SAE 1045, aluminium alloys (non-precipitation-hardenable AA5083 and precipitation-hardenable AA6110). The fatigue performance of high-temperature deep-rolled specimens was investigated using stress-controlled fatigue tests and compared with the conventionally deep-rolled condition. It was found that high-temperature deep rolling effectively enhances the fatigue performance of steels. However, for aluminium alloys, the beneficial effects of high-temperature deep rolling are not pronounced due to the different strengthening mechanisms in aluminium alloys.
Fatigue Performance Enhancement Of Steels Using Mechanical Surface Treatments, P Juijerm, I Altenberger
Fatigue Performance Enhancement Of Steels Using Mechanical Surface Treatments, P Juijerm, I Altenberger
Journal of Metals, Materials and Minerals
Mechanical surface treatments (mainly deep rolling) were performed on various steels, such as austenitic stainless steel AISI 304 and normalized plain carbon steel SAE 1045. To evaluate the effectiveness of the mechanical surface treatments, mechanically surface treated specimens were cyclically deformed at room temperature using push-pull stress-controlled fatigue and compared to the non-surfacetreated condition as a reference state. Additionally, the concept, methods and effect of selected mechanical surface treatments will also be addressed in this paper. It was found that mechanical surface treatments can dramatically enhance the fatigue performance of metallic materials as compared to the non-surface-treated condition due to …