Zobrazeno 1 - 10
of 19 527
pro vyhledávání: '"Severe plastic deformation"'
Microstructural evolution and mechanical behavior of pearlitic steel under multi-directional forging
Autor:
Nayara Aparecida Neres da Silva, Paula Cibely Alves Flausino, Taise Matte Manhabosco, Maria Teresa Paulino Aguilar, Paulo Roberto Cetlin
Publikováno v:
Journal of Materials Research and Technology, Vol 32, Iss , Pp 2160-2172 (2024)
The mechanical behavior and the microstructural evolution of a pearlitic SAE 1080 steel were analyzed along 12 Multi-Directional Forging (MDF) cycles at room temperature and strain amplitude Δε ≈ 0.30 (MDF0.30). The resulting cumulative strain fl
Externí odkaz:
https://doaj.org/article/f0c47304bafe469793022f5bdb763d90
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract Deformation mechanisms of crystalline solids has been the subject of research for more than two centuries. The theory of dislocations dominates modern views but still has significant gaps demanding the introduction of additional concepts for
Externí odkaz:
https://doaj.org/article/266e92b529fc4a6f8f1c25ce4c48cef5
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 2116-2125 (2024)
Applying the medium-entropy alloy (MEA) concept to Al alloys is considered a promising approach to enhance their strength. However, the deformable Al-based MEA under tensile stress has not been reported due to the presence of a substantial amount of
Externí odkaz:
https://doaj.org/article/7da4eeacc19440e6bd152d3d3b6b3fd2
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 2985-2993 (2024)
In recent years, severe plastic deformation has been one of the most popular methods of increasing the mechanical properties of bars. Obtaining an ultra or nanostructure in such bars provides high strength properties, but also reduces plasticity. Thi
Externí odkaz:
https://doaj.org/article/4b0ac1cf75014ef1ac692a8ab537c556
Autor:
Mahmoud Khedr, Nadia Hamzawy, Atef Hamada, Matias Jaskari, Tamer S. Mahmoud, Iman El-Mahallawi, Tarek Khalifa
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 2774-2785 (2024)
6082 Al-alloy underwent a friction stir drilling (FSD) processing. Subsequently, a two-stage post-heat treatment (PHT) procedure, i.e., solution treatment at 550 °C for 2 h, followed by artificial aging at 175 °C for 18 h, was implemented to signif
Externí odkaz:
https://doaj.org/article/ce7693c5b4414ad6925bea5dabbac46b
Publikováno v:
Journal of Materials Research and Technology, Vol 31, Iss , Pp 1355-1366 (2024)
During extrusion, the material is subjected to a heterogeneous deformation that results in the formation of gradients of microstructure and thus mechanical properties. In this study, using continuously cast commercially pure aluminum as a reference m
Externí odkaz:
https://doaj.org/article/ae52a654a4054d26a37a404f31ef27b2
Autor:
Young-Chul Shin, Seong-Ho Ha
Publikováno v:
Archives of Metallurgy and Materials, Vol vol. 69, Iss No 2, Pp 485-488 (2024)
In this study, microstructures of age-hardened 2014 Al alloy forged by cold biaxial alternate forging was investigated by transmission electron microscope. And also, the forming limits of age-hardened 2014 Al alloy were examined using both convention
Externí odkaz:
https://doaj.org/article/b939216edbd043aa9dc0627feeb139c4
Publikováno v:
Успехи физики металлов, Vol 25, Iss 2, Pp 294-319 (2024)
The changes in the properties of copper and its alloys as a result of severe plastic deformation (SPD) are reviewed. The literature review shows that contemporary materials science is aimed at solving the problem of producing ultrafine-grained materi
Externí odkaz:
https://doaj.org/article/2202eabc195d49c093f6de88a89569e7
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 3448-3462 (2024)
Advanced structural materials are expected to display significantly improved mechanical properties and this may be achieved, at least in part, by refining the grain size to the submicrometer or the nanocrystalline range. This report provides a detail
Externí odkaz:
https://doaj.org/article/f69f7a4974944cd19241811af9bfa278
Autor:
Pingping Liu, Mingzhi Zhang, Zongde Kou, Qingwei Gao, Jianhong Gong, Zhijie Yan, Wenquan Lv, Meiting Xie, Kaikai Song
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 6771-6776 (2024)
Precipitation strengthening plays a vital role in enhancing the mechanical properties of metallic materials, typically achieved through heat treatment. However, deformation-induced precipitation (DIP) in multicomponent alloys (MAs) without the assist
Externí odkaz:
https://doaj.org/article/4dac915735cc45b58aaf80ac52d3cb53