Ultrasonic impact treatment induced oxidation of Ti6Al4V alloy

Surface Modification of Аl–6Мg Alloy by Electric Discharge Alloying with Copper and Ultrasonic Impact Treatment for Enhanced Corrosion Resistance

“…Зростання I pit (інтенсифікація корозії на поверхневих дефектах) може бути пов'язано з утворенням великої кількості дислокаційних скупчень, меж зерен і субзерен. Водночас, леґування поверхні зразка Купрумом веде до утворення більш корозійностійких інтерметалідів Al x -Cu y , а також деякого можливого механо-хімічного окиснення під час УЗУО [18,22], що може запобігати корозії. Потенціал пітінгу після ЕІЛ + УЗУО (E pit = −511 мВ) значно ближчий до потенціалу пітінгу стопу Al-4% Cu (E pit = −406 мВ), ніж матричного стопу АМг6 (E pit = −697 мВ) (табл.…”

Sub-stoichiometry-facilitated oxidation kinetics in a δ-TixC-doped Ti-based alloy

“…With regard to Ti-based alloys or composites, an extensive amount of work has been accomplished toward the second type. 24,[26][27][28] In particular, the positive contribution of δ-Ti x C has been widely highlighted, as it can fasten the oxide scales by alleviating thermal mismatch. 24,29 In contrast, comparatively limited work found in the literature focuses on the motion of oxygen atoms within the Ti lattice.…”

Surface damage mitigation of Ti6Al4V alloy via thermal oxidation for oil and gas exploitation application: characterization of the microstructure and evaluation of the surface performance

“…53 Vasylyev et al developed an ultrasonic impact treatment induced oxidation on Ti6Al4V alloy, and a high performance surface was obtained on the treated Ti6Al4V alloy. 54 In this study, Ti6Al4V alloys were rstly TO treated at 700 C for 30 h. The microstructural characterizations of the TO layers were systematically investigated. Petroleum tubes suffer severe surface damage that mainly result from electrochemical corrosion, erosive-wear and corrosive-wear under complex and harsh work conditions in oil/gas wells.…”