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temperature and γ′ phase precipitates earlier than θ phase at 1000K and 1120K. With the temperature decreasing, the velocity of precipitation quickens, the quantity of θ phase increases and the size reduces; but the volume fraction increases, the quantity of phase increases and the size reduces as well. The two phases nucleate and grow independently at high temperature and the θ phase precipitates from......
J. Cent. South Univ. (2019) 26: 3279-3294 DOI: https://doi.org/10.1007/s11771-019-4252-y Role of matrix structure and flaw size distribution modification on deflection hardening behavior... binder combinations and W/B ratios (from 0.44 to 0.78) providing satisfactory PVA fiber dispersion were specially designed. Effect of pre-existing flaw size distribution modification on deflection......
Effect of pulsed current micro plasma arc welding process parameters on fusion zone grain size and ultimate tensile strength of Inconel 625 sheetsChalamalasetti Srinivasa Rao22. Department... welding parameters on fusion zone grain size and ultimate tensile strength of Inconel 625 weld joints.关键词:......
. Orthogonal experiments were introduced to study the comprehensive effects of such three parameters on diamond films deposited on WC-Co substrates. Field emission scanning electron microscopy, atomic force... parameters on the surface morphology, growth rate and chemical structure of as-deposited diamond films are studied with the field emission scanning electron microscope (FE-SEM), atomic force microscope......
and discussion 3.1 Microstructure of Al-3Ti-1B master alloys The size, morphology and distribution of particles in Al-3Ti-1B master alloys prepared at different processing parameters are shown... min, has better grain refining efficiency on Al-7Si alloy. 4 Conclusions 1) The processing parameters play critical role in the manufacturing of Al-3Ti-1B master alloys and influence the size......
on grain size and distribution of twin lamellae (ET/σyM= 500, m=20, =0.3, σyT/σyM=3, N=0.2) 4.3 Comparison with experimental results The material parameters and representative calculation model geometry... and actual materials inevitably. Secondly, the grain size and twin lamellae spacing of experimental samples are accorded with normal distribution approximately, while the geometry parameters in calculation......
Trans. Nonferrous Met. Soc. China 22(2012) s712-s716 Effective parameters on diameter of carbon nanotubes by plasma enhanced chemical vapor deposition Kang Young JEONG1, Hyun Kyung JUNG2, Hyung Woo... College of Medicine, Haeundae Paik Hospital, Busan 612-030, Korea Received 21 May 2012; accepted 19 October 2012 Abstract: The effective parameters on the diameter of carbon nanotubes (CNTs) by plasma......
, furthermore, these clusters in that case tend to contract due to the decrease of relevant atomic radius and the co-ordination number. This kind of liquid-phase structure leads to a more homogeneous Cu-rich...: electric pulse modification; Al-Cu melt; atomic cluster; liquid structure 1 Introduction With the rapid development of solidification technology and cluster physics, the effects of melt structure......
of nanomaterials. Single particle-inductively coupled plasma mass spectrometry (SP-ICP-MS) was investigated to detect the size of gold nanoparticles (AuNPs) in this work. Discrimination of particle signal and iterative algorithm were used to calculate the baseline of particle signal. Influence of dwell time was discussed and 3 ms was selected as dwell time for size detection. Different AuNPs......
. Then the simulation sample size could be determined according to the estimation of parameters and required precisions. There are primarily two types of performance measures for stochastic simulation systems: (1...Determining simulation sample size for given precision requirements SHI Peng(时蓬), YANG Ming(杨明) (Control and Simulation Centre, Harbin Institute of Technology, Harbin 150080, China) Abstract......