چکیده مقاله
Severe plastic deformation SPD is one of the methods of producing nano scale grain size materials To create a microstructure with relatively small grains, it is necessary to obtain high density of dislocations by application of high plastic strains Multi axial forging MAF , RepetitiveCorrugation & Straightening RCS and Accumulative roll bonding ARB processes are several severe plastic deformation methods to achieve nano structures In the present research, commercial pure copper was processed with ARB, MAF and RCS processes in order to obtain ultrafine microstructure and improve its mechanical strength and hardness After the preparation of the processed specimens using these three methods, structural and mechanical analyses were carried out at different stages of the process to investigate their properties These experiments showed that the hardness, yield stress and ultimate tensile strength increased significantly by the increasing the number of pressing and rolling steps in allthree methods The results also showed that the specimens produced by MAF method have better microstructural and mechanical characteristics than the ones produced by RCS and ARB
کلیدواژهها
نویسندگان
Amir Hossein Eslami
PhD student, Mechanical Engineering Dept , University of Birjand, Birjand, Iran
Hadi Hosseini
Instructor, Manufacturing group, Montazeri Technical University of Mashhad, Mashhad, Iran
S. M. Hossein Seyedkashi
Associate Prof , Mechanical Engineering Dept , University of Birjand, Birjand, Iran
شیوه ارجاع
Eslami, Amir Hossein and Hosseini, Hadi and Seyedkashi, S. M. Hossein,1397,Study on the Effects of Accumulative Roll Bonding (ARB), Repetitive Corrugation & Straightening (RCS) and Multi-Axial Forging (MAF) Processes on Mechanical Properties of Pure Copper,International Conference on Manufacturing Engineering,Tehran
ارائهشده در
مجموعه مقالات پانزدهمین کنفرانس ملی و چهارمین کنفرانس بین المللی مهندسی ساخت و تولید2 آبان 1397 · تهران