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Full-Text Articles in Engineering
Revised Semiempirical Approach To Predict The Occurrence Of Twinning In Titanium Alloys, Chirag Dhirajlal Rabadia, Syed Faraz Jawed, Jincheng Wang, Milind Siddhpura, Arti Siddhpura
Revised Semiempirical Approach To Predict The Occurrence Of Twinning In Titanium Alloys, Chirag Dhirajlal Rabadia, Syed Faraz Jawed, Jincheng Wang, Milind Siddhpura, Arti Siddhpura
Research outputs 2014 to 2021
A revised semiempirical approach, considering the average values of the valence electron to atom ratio (e/a̅) and a difference in atomic radii of alloying element/s and the base element (Δr¯), is proposed to predict the twin formation in titanium alloys. The revised e/ā versus Δr¯ diagram is plotted, considering the reported results of 90 titanium alloys fabricated using various processing methods. A new twin/slip boundary has been plotted and recommended based on the revised e/ā versus Δr¯ diagram. The conventional maximum limit reported for the twinning in titanium alloys is e/ā = 4.20; however, it has been found that twinning …
Corrosion Behavior And Characteristics Of Passive Films Of Laser Powder Bed Fusion Produced Ti-6al-4v In Dynamic Hank’S Solution, Liang-Yu Chen, Hong-Yue Zhang, Chuanbo Zheng, Hong-Yu Yang, Peng Qin, Cuihua Zhao, Sheng Lu, Shun-Xing Liang, Linjiang Chai, Lai-Chang Zhang
Corrosion Behavior And Characteristics Of Passive Films Of Laser Powder Bed Fusion Produced Ti-6al-4v In Dynamic Hank’S Solution, Liang-Yu Chen, Hong-Yue Zhang, Chuanbo Zheng, Hong-Yu Yang, Peng Qin, Cuihua Zhao, Sheng Lu, Shun-Xing Liang, Linjiang Chai, Lai-Chang Zhang
Research outputs 2014 to 2021
The corrosion behavior of laser powder bed fusion produced (L-PBF-produced) titanium alloys involving flowing body fluid is still unclear. Therefore, this work investigates in vitro corrosion behavior and the characteristics of passive films formed on L-PBF-produced Ti–6Al–4V in both static and dynamic Hank’s solutions. Electrochemical measurements, immersion tests, X-ray photoelectron spectroscopy and scanning electron microscopy were conducted. In comparison to the L-PBF-produced Ti–6Al–4V in static Hank’s solution, the samples showed lower charge transfer resistance and higher passivation current density (anodic current density as well) in dynamic Hank’s solution. Meanwhile, a more apparent deposition of apatite and hydroxyapatite is found on …
Review On Machining Of Additively Manufactured Nickel And Titanium Alloys, Navneet Khanna, Kishan Zadafiya, Tej Patel, Yusuf Kaynak, Rizwan Abdul, Rahman Rashid, Ana Vafadar
Review On Machining Of Additively Manufactured Nickel And Titanium Alloys, Navneet Khanna, Kishan Zadafiya, Tej Patel, Yusuf Kaynak, Rizwan Abdul, Rahman Rashid, Ana Vafadar
Research outputs 2014 to 2021
The machining of nickel and titanium-based superalloy components is very expensive and involves unusually high lead times compared with other engineering metals such as steels and aluminum. This has led to the development of most suitable additive manufacturing (AM) processes to fabricate these difficult-to-machine metals into near-net shape parts, thereby reducing the lead time and material waste, and significantly increasing productivity. Nonetheless, finish machining is still required on the AMed metal components to meet the dimensional and surface requirements of the application. Several research studies have investigated the machinability of AMed nickel and titanium alloy workpieces and have compared the …