Dislocations are often introduced in Ni-based superalloys to impart sufficient strength at both room temperature and high temperatures prior their use automobile exhaust gaskets. However, the interaction between representative γ′ (Ni3(Al, Ti))-phase precipitates dislocations remains unclear. Therefore, this study examined effect of cold rolling on age-hardening behavior microstructure evolution...

A synergistic combination of mechanical properties and corrosion resistance property is desired for most ocean engineering structural applications. In this paper, we prepared a high-entropy alloy (HEA) cladded layer composition CrFeCoNiNb (atomic %). We aim to attain balance between the by adjusting energy density. The with an density 116.7 J/mm2 exhibited excellent high resistance. improved ar...

This study aims to prepare a stir-cast EV31A magnesium alloy and investigate the effects of T4 condition (solid solution strengthening) T6 strengthening cum age hardening) on phases, microstructure, mechanical properties, fractography. The solid at 520 °C for 8 h allows Rare-Earth Elements (REE) dissolve in Mg matrix, but solubility is limited by presence Zn. phenomenon responsible heat-treated...

OBJECTIVE The current Australian Physical Activity Guidelines recommend that adults engage in regular muscle-strengthening activity (e.g. strength or resistance training). However, public health surveillance studies describing the patterns and trends of population-level muscle-strengthening activity participation are sparse. The aim of this study is to examine the prevalence, trends and sociode...

Herein, we showed that controlled additions of Al, which provided a certain degree B2 ordering, resulted in ∼ 37%-enhancement both yield strength and uniform elongation Alx(NbTiZr)100-x (x = 0; 2.5; 5; 7.5 at.%) refractory medium-entropy alloys. The improvement properties stemmed from the solid solution short-range order strengthening, as well alteration character dislocation glide. ordering ca...

Research demonstrates a positive effect of aerobic exercise on cognitive functioning in older adults. Unfortunately, aerobic exercise is often contraindicated for older adults due to cardiovascular and functional limitations. Low-intensity strengthening exercise may offer a practical alternative, but the neuropsychological benefits and potential neurophysiological mechanisms are less well under...

OBJECTIVE To compare the efficacy of posterolateral hip muscle strengthening versus quadriceps strengthening in reducing pain and improving health status in persons with patellofemoral pain (PFP). DESIGN Comparative control trial. SETTING Rehabilitation facility. PARTICIPANTS Persons with a diagnosis of PFP (N=36; 18 men, 18 women). INTERVENTIONS Patients were alternately assigned to a ...