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time for diffusion) may result in a lower hardening rate. The authors believe that the observed work softening may be related to the depletion of alloying element particularly the Y atoms from the solid... through formation of short range order regions. The higher transition temperature may be also eminent in the as-extruded alloy containing precipitates. The critical stress for twinning is not strongly......
]. 1989-08-01. [8] HAGGAG F M. In-situ measurements of mechanical properties using novel automated ball indentation system, in small specimen test techniques applied to nuclear reactor thermal annealing......
property which can be stabilized by addition of oxides like MgO, Y2O3 and CaO [9, 10]. Sandblasting, annealing and grinding could result in T-M phase transition [11, 12]. As the tetragonal phase is more... cost in grinding ceramics is of great importance. Grinding brittle materials such as ceramics may result in surface and subsurface cracks, which decreases the mechanical property and life time of work......
the short heating time, LSM is able to alter the texture of the deformed alloy, producing a change in texture similar to that produced with the recrystallization process (Comparing Fig. 5(e) with Fig. 3(b... melting (LSM) provides improved wear and corrosion resistances for Ti-6Al-4V alloys. LSM can also improve biocompatibility by creating a surface roughness that favors cell adhesion and is less time......
should be satisfied to realize the efficient cooperation, such as special time-window, variant equipment, specified execution sequence. Hence, a proper task allocation in UAVs is the crucial point... strategy and a constraint scheduling method are designed to handle the critical logical and physical constraints. In addition, four optimization objectives: completion time, target reward, UAV damage......
in a very short period of time, the liquid phase hardly had time to move and the softening process would be ended at the same time. The effect of work hardening was highlighted in this process. As a result.... At high strain rate, the motion of dislocation and liquid phase was difficult during the short deformation time. Therefore, the deformation resistance was large and the solid grains were forced......
that the passivation behavior of the CP-Ti and the borided samples was improved by increasing exposure time. Based on the Mott-Schottky (M-S) tests, it was realized that the charge carriers of passive films of both samples decreased with increasing exposure time in BSA-containing PBS. The bioactivity test results in a simulated body fluid showed that the TiB/TiB2 coating switched the CP-Ti from bioinert......
, PENG H B, QIN Q H, FAN Q C, BAO S L, WEN Y H. Effects of annealing on hardness and corrosion resistance of 60NiTi film deposited by magnetron sputtering[J]. Journal of Alloys & Compounds, 2018......
annealing at 495 °C for 1 h, the samples were quenched in water and naturally aged for minimum 7 days (naturally aged alloy, NA). After natural aging, some of the samples were annealed at 190 °C for 16 h...) for electrochemical double layer and charge transfer resistance (Rct). A time constant specific to the inhibitive film could not be distinguished from the time constant related to the passive oxide film......
is blended with master alloy or elemental powder and sintered under a dynamically controlled H2. Additionally, following vacuum annealing step is applied to remove residual hydrogen in Ti parts. Efforts......
