Jun Yu
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View article: Interactive effects of temperature, moisture content, and decay on the electrical resistance of <i>Populus ussuriensis</i> wood
Interactive effects of temperature, moisture content, and decay on the electrical resistance of <i>Populus ussuriensis</i> wood Open
The study sought to examine the response of the logarithm of electrical resistance (log R ) of Populus ussuriensis wood to temperature fluctuations ranging from −20 to 20 °C and moisture content variations between 0 and over 100 %. Resista…
View article: Achieving strength-plasticity synergy in trace B-modified near β titanium alloy fabricated by laser directed energy deposition
Achieving strength-plasticity synergy in trace B-modified near β titanium alloy fabricated by laser directed energy deposition Open
Achieving a balance between strength and ductility in additively manufactured near β titanium alloys is challenging. In this study, adding trace B to Ti-5Al-5Mo-5V-3Cr-1Zr significantly enhanced constitutional undercooling and suppressed g…
View article: Analytical Solution for Steady-State Seepage Field of Foundation Pit During Water Curtain Leakage
Analytical Solution for Steady-State Seepage Field of Foundation Pit During Water Curtain Leakage Open
In recent years, with the increasing difficulty of foundation pit projects, the frequency of leakage accidents has also increased. In order to ensure that the excavation of foundation pits is carried out smoothly, water-stop curtains are g…
View article: Strain hardening mechanism induced by basal/pyramidal dislocation reactions in a 3D-printed high-strength titanium alloy
Strain hardening mechanism induced by basal/pyramidal dislocation reactions in a 3D-printed high-strength titanium alloy Open
The high yield ratio and low strain hardening ability of titanium alloys significantly limit their engineering applications. In this work, a Ti65Zr30Cu5 (at.%) alloy with nanoscale α laths was additively manufactured and achieved a high yi…
View article: Synergistic enhancement of strength and plasticity in Ti–Cu alloys by elimination of pearlite microstructure through Zr alloying
Synergistic enhancement of strength and plasticity in Ti–Cu alloys by elimination of pearlite microstructure through Zr alloying Open
The eutectoid Ti–Cu alloy has the advantages of high strength and hardness. However, the pearlite eutectoid structures with coupled α + Ti2Cu lamellae result in low plasticity. In this study, a Zr alloying method is proposed to suppress th…
View article: Development and application of precision optical system for laser detection
Development and application of precision optical system for laser detection Open
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View article: Electrochemical dissolution and passivation of laser additive manufactured Ti6Al4V controlled by elements segregation and phases distribution
Electrochemical dissolution and passivation of laser additive manufactured Ti6Al4V controlled by elements segregation and phases distribution Open
The electrochemical dissolution and passivation of laser additive manufactured Ti6Al4V were investigated through Tafel polarization, potentiostatic polarization and AC impedance measurements. The results show that the solution treatment−ag…
View article: Investigations on a novel collector for anionic reverse flotation separation of quartz from iron ores
Investigations on a novel collector for anionic reverse flotation separation of quartz from iron ores Open
It is necessary to exploit an easy and effective way to obtain flotation collector.In this paper, oleic acid was modified by oxidation reaction to obtain an excellent collector.The flotation performances of oleic acid and its oxidation pro…
View article: Study of grain distribution during friction stir welding of Al-Zn-Mg alloys using numerical simulation
Study of grain distribution during friction stir welding of Al-Zn-Mg alloys using numerical simulation Open
During friction stir welding (FSW) of Al-Zn-Mg alloys, the grain size of the welded material significantly affects its mechanical properties. In this study, the FSW process was simulated using the finite element method (FEM). Subsequently,…