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resulting from the effects of hydrogen gas. Key words: annealing; 5083F Al-Mg alloy; corrosion; seawater; slow strain rate tests 1 Introduction The fiber-reinforced plastic (FRP) composite materials... for the slow strain rate tests (SSRTs) were also exposed to natural seawater. These were fitted with a jig for an Instron machine. The SSRT was carried out at a strain rate of 0.001 mm/min, during......
the plastic deformation occurring in the strain-hardening stage. Aiming at Ti-6Al-4V, the effect of strain rate on the evolution of the local damage variable at the ASB center was investigated. In addition, a parametric study was carried out, including the effects of strain-hardening exponent, strain rate sensitive coefficient, thermal-softening exponent, static shear strength, strain-hardening......
and Applications, 2009, 28(3):68-76． [11] 冯悦, 肖守讷, 朱涛, 等. 材料应变率效应对2类吸能结构碰撞性能的影响[J]. 中南大学学报(自然科学版), 2018, 49(10): 2625-2635. FENG Yue, XIAO Shoune, ZHU Tao, et al. Influence of material strain rate effect..., 8(6): 393-395. MENG Guangcheng, TAI Yonggang. Study on the effect of material strain rate on the simulation result of guardrail collision[J]. Journal of Highway and Transportation Research......
be related to the difference of solid solution strengthening caused by phase change during the creep tests. Key words: Al-5356 alloy; transient creep; phase change; low strain rate 1 Introduction.... As another creep stage, transient creep is less studied, but it is extremely important at very low strain rate because identification of the secondary creep stage requires very long testing time, even......
South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract: The apparent activation energy for deformation (Q) and strain rate sensitivity (m) of GH4586 superalloy... are constructed. The results show that the Q value is in the range of 751.22-878.29 kJ/mol. At a temperature of 1060 °C, strain rate of 0.001 s-1, and strain of 0.65, the m value of GH4586 superalloy......
spectroscopy (TDS) for a high strength steel after it was tempered at the temperatures of 430 °C, 500 °C and 520 °C, respectively. the loss of ductility was characterized by slow strain rate test (SSRT... stainless steel; hydrogen trapping; thermal desorption spectroscopy; slow strain rate test......
compression experiments were carried out at deformation temperatures of 880-1120 °C and strain rates of 0.01-10 s-1. And the deformation amount of all the samples was 50%. The strain rate sensitivity.... The results show that the flow stress increases with the increase of strain rate and the decrease of deformation temperature. The value of m increases with the increase of deformation temperature......
, the energy absorption of structure increases by 8.97% at the crushing distance of 600 mm. Given the effect of strain rate, energy absorption compared with quasi-static situation is significantly improved. Meanwhile, at low impact speed, strain rate effect is more sensitive. Key words: square tube; energy absorption; crashworthiness; hardening coefficient; strain rate effects 安全是交通永恒的主题,据维基百科资料,世界......
on the electrochemical and mechanical properties of SS400 steel was investigated, and the effects of annealing conditions on notched specimens subjected to the slow strain rate test (SSRT) were studied...; electrochemical and mechanical properties; slow strain rate test; stress corrosion cracking ......
system and Split Hopkinson Pressure Bar. The dynamic behavior (strain rate 6×102?1×104 s?1) of AZ91 was studied. The fracture surface of samples at different strain rates was examined by scanning electron microscope (SEM). The results show that the cast AZ91 has obvious strain hardening character at room temperature. The mechanical behavior of cast AZ91 declines as the strain rate increases under a low......
