Effects of cold rolling on the microstructure and mechanical properties of Fe-Ni-Mn-Mo-Ti-Cr maraging steels |
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| Institution: | Abbas Mahmudi1),Syamak Hossein Nedjad2),and Mir Masud Jabbari Behnam3) 1) Young Researchers Club,Islamic Azad University (Ahar Branch),54516 Ahar,Tabriz,Iran 2) Faculty of Materials Engineering,Sahand University of Technology,Tabriz 51335-1996,Iran 3) Department of Materials Science and Engineering,Sharif University of Technology,Tehran 11365,Iran |
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| Abstract: | Effects of cold rolling on the microstructure and mechanical properties of Fe-Ni-Mn-Mo-Ti-Cr maraging steels were studied.To investigate the microstructure and mechanical properties,optical microscopy,scanning electron microscopy,X-ray diffraction,tensile test,and hardness test were used.The results show that the solution-annealing treatment in the cold-rolled steel redounds to the formation of sub-microcrystalline Fe2(Mo,Ti) Laves phase particles,which are stable at high temperatures.These secondary Laves phase particles prevent from recrystallization at high temperatures and correspond to semi-brittle fracture in the subsequent aging treatment. |
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| Keywords: | maraging steel cold rolling age hardening Laves-phase microstructure mechanical properties |
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