Effect of TiB2 Particle Size on Erosion Behavior of Ag-4wt% TiB2 Composite

2015 ◽  
Vol 44 (11) ◽  
pp. 2612-2617 ◽  
Author(s):  
Wang Xianhui ◽  
Yang Hao ◽  
Liang Shuhua ◽  
Liu Mabao ◽  
Liu Qida
Keyword(s):  
Particle Size ◽  
Tib2 Particle ◽  
Erosion Behavior

Investigation on the arc erosion behavior of new silver matrix composites: Part I. Reinforced by particles

2003 ◽  
Vol 18 (4) ◽  
pp. 804-816 ◽  
Author(s):  
Shou-Yi Chang ◽  
Chia-Jung Hsu ◽  
Cher-Hao Hsu ◽  
Su-Jien Lin
Keyword(s):  
Particle Size ◽  
Erosion Resistance ◽  
High Viscosity ◽  
Matrix Composites ◽  
Particle Content ◽  
Arc Erosion ◽  
Erosion Behavior ◽  
Surface Areas ◽  
Large Particles ◽  
Silver Matrix

Static-gap, single-spark tests were used to investigate the arc erosion behavior of newly developed silicon carbide and alumina particle reinforced silver matrix composites (SiCp/Ag, Al2O3p/Ag). Craters and hills exist on the surfaces of eroded silver matrix composites, and their depths and sizes decrease as the particle content increases and the particle size decreases. Obvious melting, flow, severe splash of molten silver, and the segregation of particles are present on the surfaces of eroded composites containing low volume percents of large particles. Easier silver flow results in smooth surfaces and reduces the total surface areas of the eroded composites containing large particles. The flow and splash of silver decreased with increasing particle content and decreasing particle size, exhibiting a better erosion resistance to single-spark tests. The static-gap, single-spark erosion behavior of silver matrix composites is dominated by the flow and splash of molten composites. A high viscosity of the liquids provides the composites a good arc erosion resistance.

SLURRY EROSION BEHAVIOR OF HVOF SPRAYED WC-12Co AND Cr3C2-25NiCr COATINGS DEPOSITED ON 16Cr5Ni STAINLESS STEEL

2020 ◽  
Vol 27 (08) ◽  
pp. 1950193
Author(s):  
JIN DU ◽  
JIANFENG ZHANG ◽  
JINKUN XIAO ◽  
CHAO ZHANG
Keyword(s):  
Particle Size ◽  
Stainless Steel ◽  
Significant Influence ◽  
Rotational Speed ◽  
Erosion Rate ◽  
Martensitic Stainless Steel ◽  
Composite Coatings ◽  
Dominant Factor ◽  
Slurry Erosion ◽  
Erosion Behavior

Slurry erosion behaviors of HVOF WC-12Co and Cr3C2-25NiCr coatings as well as 16Cr5Ni martensitic stainless steel were investigated in the present paper. Erosion experiments were carried out using slurry with different rotational speeds, particle size and concentration to evaluate their influences on the coatings. It was found that the rotational speed had the most significant influence on WC-12Co coating, whereas the erosion particle size was a more dominant factor for the Cr3C2-25NiCr coating. Nevertheless, the effect of concentration was most important in the case of 16Cr5Ni steel. It is demonstrated that cermet composite coatings could effectively enhance the resistance of slurry erosion, and the WC-12Co coating exhibits a minimum erosion rate compared with the steel and Cr3C2-25NiCr coating. 16Cr5Ni steel and WC-12Co coating showed ductile and brittle mechanisms, respectively, whereas Cr3C2-25NiCr exhibited multiple mechanisms of ductile and brittle, dominantly ductile.

Effects of TiB2 particle size on the microstructure and mechanical properties of TiB2-based composites

2019 ◽  
Vol 45 (1) ◽  
pp. 1370-1378 ◽  
Author(s):  
Ning Wu ◽  
Fengdan Xue ◽  
Hailin Yang ◽  
Guoping Li ◽  
Fenghua Luo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Tib2 Particle ◽  
Microstructure And Mechanical Properties

Effect of TiB2 particle size on the material transfer behaviour of Cu–TiB2 composites

2020 ◽  
Vol 36 (15) ◽  
pp. 1685-1694
Author(s):  
Xiuhua Guo ◽  
Kexing Song ◽  
Wang Xu ◽  
Guohui Li ◽  
Zaoli Zhang
Keyword(s):  
Particle Size ◽  
Tib2 Particle ◽  
Material Transfer

Microstructure Control of Ceramic-Intermetallic Composites by Heat-Treatment before Combustion Synthesis

2007 ◽  
Vol 561-565 ◽  
pp. 769-772 ◽  
Author(s):  
Kiyotaka Matsuura ◽  
Kenichi Ohsasa ◽  
Yuki Obara
Keyword(s):  
Heat Treatment ◽  
Particle Size ◽  
Combustion Synthesis ◽  
Volume Fraction ◽  
Formation Enthalpy ◽  
Tib2 Particle ◽  
Adiabatic Temperature ◽  
Partial Reaction ◽  
Temperature And Pressure ◽  
Large Formation

When mixtures of Fe, Al, Ti and B powders were heated, the combustion synthesis, or SHS, reaction occurred and produced a TiB2 particle dispersed FeAl-based composite. The TiB2 particle size increased with increasing TiB2 volume fraction from 0.3 to 0.8, which was considered to be due to the fact that the adiabatic temperature of the reaction increases with the increase in TiB2 concentration in the composite due to the large formation enthalpy of TiB2. The TiB2 particle size decreased with increasing preheating time, temperature and pressure before the SHS reaction. It was suggested that partial reaction between elemental powders before the SHS reaction reduced the adiabatic temperature and hence the TiB2 particle size. The Vickers hardness of the composite varied from 500 to 2000 depending on the microstructure. This method was applied to the production of TiC-FeAl, TiC-Fe, TiB2-Fe composites.

Tribological performance of polymethyl methacrylate as an aviation polymer

2014 ◽  
Vol 34 (6) ◽  
pp. 569-579 ◽  
Author(s):  
Sinan Fidan
Keyword(s):  
Particle Size ◽  
Polymethyl Methacrylate ◽  
Synthetic Polymers ◽  
Solid Particle Erosion ◽  
Optical Profilometry ◽  
Impingement Angle ◽  
Erosion Behavior ◽  
3D Profilometry ◽  
Optical Profilometer ◽  
Worn Surface

Abstract Polymethyl methacrylate (PMMA) is one of the most popular synthetic polymers in aircraft windshields as an alternative to glass, due to its lightweight, high transparency and impact-resistant characteristics. The erosion behavior of PMMA is critical when used as an alternative to glass in an aircraft windshield. This paper presents experimental data on the effects of particle size, velocity and impingement angle on the roughness of PMMA, using 3D optical profilometry after solid particle erosion tests. Particular attention is paid to determining the different morphologies of imprints and cracks with regard to particle size, impact velocity and impingement angle. It is further shown that the removed volume in overlapping impacts measured by 3D profilometry is captured well. It is demonstrated that maximum erosion rate occurred at a 30° impingement angle and correlates well with the ductile erosion behavior of PMMA. Detailed worn surface analysis was performed using 3D optical profilometer scanning to investigate effects of particle size, velocity and impingement angle on the roughness of PMMA.

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