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Dynamic Strain Aging in a Newly Developed Ni-Co-Base Superalloy with Low Stacking Fault EnergyChenggang Tian,Chuanyong Cui,Ling Xu,Yuefeng Gu,Xiaofeng SunSuperalloys Division,Institute of Metal Research,Chinese Academy of Sciences摘 要:Characteristics of dynamic strain aging(DSA) in a Nie Co-base superalloy were studied by tensile tests at temperatures......
J. Cent. South Univ. (2020) 27: 76-87 DOI: https://doi.org/10.1007/s11771-020-4279-0 A new hybrid energy absorption mechanism subjected to axial loading BAHMAN Paygozar1, MOHAMMAD ALI Saeimi... of systems in absorbing the kinetic energy of moving vehicles or devices. This new model consists of two individual mechanisms, i.e., expansion of a circular tube accompanied by crushing of an inner tube......
of ultrathin section of cells of strain YSK 3.3 TEM and energy-dispersive X-ray analysis of magnetic particles Transmission electron micrograph of the purified particles (Fig.3) indicates that these particles in the cells of strain YSK are round-like or cuboidal in shape and are 24-64 nm (average 44 nm) in diameter. Energy- dispersive X-ray analysis (Fig.4) indicates that the magnetic particles......
Microscopic phase-field simulation coupled with elastic strain energy for precipitation process of Ni-Cr-Al alloys with low Al content LU Yan-li(卢艳丽), CHEN Zheng(陈 铮), LI Yong-sheng(李永胜), WANG...; Abstract: The precipitation process of Ni-Cr-Al alloy with low Al content was studied at atomic scale based on the microscopic phase-field kinetic model coupled with elastic strain energy. The aim......
New algorithm of mine slope reliability based on limiting state hyper-plane and its engineering applicationLIU Zhi-xiang(刘志祥), TANG Zhi-xiang(唐志祥), WANG Wei-hua(王卫华), SUN Jing-jing(孙晶晶), PENG Kang(彭... reliability based on limiting state hyper-plane is proposed. It is shown that by using this new reliability algorithm the calculation of partial derivative of performance function is avoided......
speeds at 0.25 and 0.76 mm/s (initial strain rates of 0.008 and 0.025 s-1, respectively). 2.4 Limiting dome height (LDH) Schematic of the LDH tooling geometry used in the present work is shown in Fig. 2... formability. Fig. 5 Strain rate sensitivity parameter (m) plotted as function of temperature Fig. 6 LDH as function of temperature for AA7075 3.4 Limiting draw ratio (LDR) The experimental results......
J. Cent. South Univ. Technol. (2008) 15: 569-573 DOI: 10.1007/s11771-008-0107-7 Complete splitting process of steel fiber reinforced concrete at intermediate strain rate LUO Zhang(罗 章)1... University, Changsha 410083, China; 3. School of Energy and Safety Engineering, Hunan University of Sciences and Technology, Xiangtan 411201, China)  ......
not have any axis of symmetry. Fig. 11 Impacting phase portrait curve with barrier in x=4 cm, ζ=0.2, m=1 kg, k=500 N/m, Ω=10 rad/s, A=30 N 3.1 Transferred energy to barrier Transferred energy... in Table 1. In this work the energy density of the vibro-impact oscillator has been shown. If this item is multiplied by the mass of oscillator, the result will be the energy transferred to the barrier......
with initial confining pressures of 10, 20 and 30 MPa under different unloading paths, the processes of strain energy conversion were investigated. The absorbing strain energy for axial compression, the dissipating strain energy for plastic deformation and cracks propagation, the expending strain energy for circumferential deformation, and the storing and releasing elastic strain energy were......
Local Strain Energy Density Applied to Bainitic Functionally Graded Steels Plates Under Mixed-Mode(Ⅰ+Ⅱ) LoadingH.Salavati1,Y.Alizadeh1,F.Berto21. Department of Mechanical Engineering, Amirkabir University of Technology2. Department of Management and Engineering, University of Padova摘 要:In this paper, the averaged value of the strain energy density(SED......