Results 171 to 180 of about 3,583 (206)

Effects of Grain Refiner and Cooling Rate on Solidification Structure of H62 Brass

Advanced Materials Research, 2013
In this paper, effects of different grain refiners on solidification structure of H62 brass under different cooling rates were investigate by macro corrosion, SEM and EDX analyses. Results of experiments indicate that the columnar crystal zone of H62 brass is completely eliminated and the grain size is reduced remarkably by 0.01%B.
Zheng Hua Guo
exaly   +2 more sources

Equivalent strain, microstructure and hardness of H62 brass deformed by constrained groove pressing

Computational Materials Science, 2011
Constrained groove pressing (CGP) has been developed to refine grain sizes, and in most cases is conducted under partially constrained conditions. Here we report the first investigation of the Von Mises equivalent strain and its distribution in samples subject to CGP under partially constrained conditions.
Leon Shaw, K -W Qian, Kaiping Peng
exaly   +2 more sources

Effects of La2O3 on Mechanical Properties and Corrosion Resistance of H62 Brass

JOM, 2016
In this article, the effects of lanthanum oxide (La2O3) on the microstructure and mechanical properties of H62 brass were investigated by using the universal testing machine, Brinell hardness tester, optical microscope, and scanning electron microscope (SEM).
Xiangwei Wu, Hong Luo, Meng Sheng, Huanchao Liu, Zhen Xiao, Haoran Geng   +5 more
openaire   +1 more source

Fatigue crack initiation life of fine grain brass H62

Theoretical and Applied Fracture Mechanics, 2010
Fine grain alloys possess excellent properties entailing high strength and toughness. Fine brass H62 is made by re-crystallization with grain size ranging from 5 to 10 μm. Fatigue initiation life is investigated from specimens tested on Instron 1341 machine a frequency of 30 Hz.
M. Zheng, M.X. Tong, H.P. Cai, C.Z. Xu, M.Q. Huang   +4 more
openaire   +1 more source

On the Size Effects in Micro/Meso Upsetting of Brass H62 at Elevated Temperatures

Key Engineering Materials, 2014
Micro/meso forming, as an emerging manufacturing process for miniature metallic workpieces, has attracted great attention since the 1990s due to its high production efficiency, low material waste and high precision. Due to the so-called size effects in the scaling down, many traditional theories in metal forming cannot be simply applied to the micro ...
Hao Yan Wang, Zhe He Yao, De Qing Mei
openaire   +1 more source

Wear-resistant reinforcement of welds formed by H62 filler material

Welding in the World, Le Soudage Dans Le Monde
Bojiang Ma
exaly   +2 more sources

Research on the Micro-tensile Test on H62 Brass Sheet and Size Effects

2010 International Conference on Electrical and Control Engineering, 2010
In order to investigate the effect of grain size and thickness with respect to material mechanical property in the micro-scale, experiments were taken by tensile test on H62 brass sheet metal with different grain sizes and thicknesses. The experiment results show that the flow stress decreases with the decreasing sheet metal thickness, and the flow ...
Wei Ziyun, Liu Fang
openaire   +1 more source

Corrosion behavior of copper T2 and brass H62 in simulated Nansha marine atmosphere

Journal of Materials Science & Technology, 2019
Abstract The accelerated corrosion behavior of copper T2 and brass H62 exposed in simulated Nansha marine atmosphere for different periods were investigated by weight loss method, SEM, XRD and potentiodynamic polarization measurements. The results indicate that copper T2 and brass H62 underwent severe corrosion, and the final corrosion rates at 32 ...
Xiao Lu, Yuwei Liu, Miaoran Liu, Zhenyao Wang   +3 more
openaire   +2 more sources

Characteristics of microstructure evolution of two-phase H62 brass alloy during continuous extrusion

Procedia Engineering, 2017
Abstract The initial grains of H62 brass alloy are refined after continuous extrusion, and the dynamic recrystallization occurs in the forming process. Mastering the driving forces of microstructure evolution are the key for exploring the deformation characteristics of two-phase H62 brass during continuous extrusion.
Bing Li, Zikai Lin, Cheng Peng, Xue Wang, Jingfeng Zhang   +4 more
exaly   +2 more sources

Multi-Scale Numerical Simulation of H62 Brass for Hot-Extrusion Process

Advanced Materials Research, 2010
Thermal deformation process of H62 brass is studied, multi-scale simulations of macro-forming property and microstructure distribution are carried out for the hot-extrusion process of double cups part with flange utilizing numerical simulation technology, the process parameters are determined and the microstructure of extruded parts is predicted.
Yan Hong Xiao, Chen Guo, Xiao Kang Tian
openaire   +1 more source