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作者:J.P. Oliveira , T.G. Santos , R.M. Miranda
来源:[J].Progress in Materials Science(IF 23.194), 2020, Vol.107
摘要:Abstract(#br)Additive manufacturing technologies based on melting and solidification have considerable similarities with fusion-based welding technologies, either by electric arc or high-power beams. However, several concepts are being introduced in additive manufacturing which h...
作者:J.P. Oliveira , Sansan Ao ...
来源:[J].Optics and Laser Technology(IF 1.365), 2020, Vol.122
摘要:Abstract(#br)The thermo-mechanical properties of NiTi shape memory alloys (SMAs) have sparked significant research efforts seeking to exploit their bionic capabilities. Currently, the performance capabilities of NiTi-based devices have been inhibited by the retention of only one ...
作者:J.P. Oliveira , R.S. Coelho ...
来源:[J].Materials Characterization(IF 1.88), 2020, Vol.162
摘要:Abstract(#br)Microstructural features resulting from thermomechanical treatment of the β-metastable Ti-5Al-5Mo-5V-3Cr (Ti-5553) alloy were studied by means of electron backscatter diffraction and X-ray diffraction. The alloy was deformed at 950 °C (β field) and 800 °C (...
作者:J.P. Oliveira , N. Schell ...
来源:[J].Intermetallics(IF 1.857), 2020, Vol.116
摘要:Abstract(#br)Dissimilar laser welding of NiTi to stainless steel is of great importance in designing medical devices but the formation of hard and brittle intermetallic compound results in low strength joints. Normally, different interlayers are applied as physical and chemi...
作者:J.P. Oliveira , K. Ponder ...
来源:[J].Journal of Materials Processing Tech.(IF 1.953), 2019, Vol.273
摘要:Abstract(#br)A multi-process joining technique that combined resistance spot welding and friction element welding was used to produce a three-sheet multi-stack of advanced high strength steel and precipitation hardened aluminum. Each weld process was tested independently and as a...
作者:J.P. Oliveira , R.M. Miranda , F.M. Braz Fernandes
来源:[J].Progress in Materials Science(IF 23.194), 2017, Vol.88, pp.412-466
摘要:Abstract(#br)NiTi is an increasingly applied material in industrial applications. However, the difficulties faced when welding and joining is required, limits its broader use in the production of complex shaped components. The main weldability problems associated with NiTi are: s...
作者:J.P. Oliveira , B. Crispim ...
来源:[J].Journal of Materials Processing Tech.(IF 1.953), 2019, Vol.271, pp.93-100
摘要:Abstract(#br)Large diameter rods of Cu-Al-Mn shape memory alloy were gas tungsten arc welded. The microstructural evolution was studied by electron microscopy techniques and its impact on the mechanical and functional response of the welded joints was assessed. The fusion zo...
作者:J.P. Oliveira , A.J. Cavaleiro ...
来源:[J].Scripta Materialia(IF 2.821), 2018, Vol.152, pp.122-126
摘要:Abstract(#br)Laser additive manufacturing of NiTi generates complex microstructural features not fully understood yet. Thermal similarities between laser microjoining and laser additive manufacturing, enables correlating the effect of the laser on the material in both processes. ...
作者:J.P. Oliveira , A.P. Melo ...
来源:[J].Journal of Heart and Lung Transplantation(IF 5.112), 2019, Vol.38 (4), pp.S298-S298
摘要:Purpose(#br)Primary graft dysfunction (PGD) has been associated with donor and recipient characteristics. The ischemia reperfusion injury is likely to play an important role in the development of PGD and is directly related to the ischemic time. This study aims to compare th...

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