Effect of particle size on the amount of residual austenite in atomized high-speed steel powders

1985 ◽  
Vol 24 (11) ◽  
pp. 789-791
Author(s):  
A. N. Popandopulo ◽  
V. I. Kalinina
Keyword(s):  
Particle Size ◽  
High Speed ◽  
High Speed Steel ◽  
Residual Austenite ◽  
Effect Of Particle Size

Effect of particle size on the properties of atomized high-speed steel powders and blanks produced from such powders

1976 ◽  
Vol 15 (5) ◽  
pp. 346-350 ◽  
Author(s):  
A. K. Petrov ◽  
E. N. Smirnova ◽  
I. Ya. Kondratov ◽  
L. V. Ocheretovaya
Keyword(s):  
Particle Size ◽  
High Speed ◽  
High Speed Steel ◽  
Effect Of Particle Size

scholarly journals The Heat Treatment Influence of 1.3343 High Speed Steel on Content of Residual Austenite

2016 ◽  
Vol 22 ◽  
pp. 161-166
Author(s):  
Maria Stoicanescu ◽  
Emilian Ene ◽  
Adriana Zara ◽  
Ioan Giacomelli ◽  
Aurel Crisan
Keyword(s):  
Heat Treatment ◽  
High Speed ◽  
High Speed Steel ◽  
Residual Austenite

Formation of Build Up Layers Microstructure by Arc Automatic Overlay Welding Using Secondary Raw Material Powders

2013 ◽  
Vol 58 (2) ◽  
pp. 549-553 ◽  
Author(s):  
P. Ambroza ◽  
S. Bockus ◽  
L. Kavaliauskiene
Keyword(s):  
Tool Steel ◽  
High Speed ◽  
High Speed Steel ◽  
Residual Austenite ◽  
Raw Material ◽  
Low Carbon ◽  
The Matrix ◽  
Hardened Tool Steel ◽  
Overlay Welding ◽  
Materials Used

Microstructure and properties of structural steel subjected to overlay welding with secondary materials powder is investigated. Crushed glass, grinding wheels (SiC), hard metals plates, high speed steel and cast iron chips as well as marble powders were used in automatic overlay welding of steel by low carbon wire. Powder spread over the steel surface and melted by continuously supplied wire arc enabled to obtain layers with graphite and carbides inclusions in the matrix; hardness of the matrix depends on the phases contained in it: martensite, troostite and residual austenite as well as secondary carbides. Depending on materials used for overlay welding the layers were obtained which abrasive wear resistance became equal to that of high alloyed hardened tool steel. Wear of these layers is much more less in comparison with low alloyed hardened tool steel.

The Effect of particle size on the burying ability of the brown shrimp Crangon crangon

1993 ◽  
Vol 73 (2) ◽  
pp. 365-377 ◽  
Author(s):  
Eunice H. Pinn ◽  
Alan D. Ansell
Keyword(s):  
Particle Size ◽  
High Speed ◽  
Size Range ◽  
Influencing Factor ◽  
Video Recording ◽  
Crangon Crangon ◽  
Recording Equipment ◽  
High Speed Video ◽  
Naturally Occurring ◽  
Effect Of Particle Size

The burial mechanism of Crangon crangon was examined in detail using high-speed video-recording equipment. Four stages of burial were identified which were associated with three modes of burial. As the mode of burial changed, a change in the angle of substratum penetration was also noted.The effect of particle size on the burying ability of three discrete size classes of shrimp was examined using both artificially graded and naturally occurring sediments. Particle size was found to be a major influencing factor on the degree of burial achieved by C. crangon, but no significant effect of shrimp size on burying ability was found over the size range tested.

Heat Treatments of W6Mo5Cr4V2Si High Speed Steel

2013 ◽  
Vol 712-715 ◽  
pp. 17-21
Author(s):  
Yong Li ◽  
Li Yuan Niu ◽  
Ji Xing Lin ◽  
Zi Mu Shi ◽  
Guang Liang Gao ◽  
...  
Keyword(s):  
High Speed ◽  
Annealing Temperature ◽  
High Speed Steel ◽  
Residual Austenite ◽  
Heat Treatments ◽  
Annealing Effect ◽  
Tempering Temperature ◽  
Temperature Range ◽  
Carbide Particles ◽  
Quenching And Tempering

In this study, we conducted heat treatments on W6Mo5Cr4V2Si steel using different annealing, quenching, and tempering processes. Meanwhile, the microstructure and hardness performance of this steel are analyzed. The results showed that, in the annealing temperature range of 790°C-870°C, the higher the annealing temperature was, the better the annealing effect that W6Mo5Cr4V2Si steel presented; W6Mo5Cr4V2Si steel exhibited the lowest annealing hardness of 22.6 HRC after annealing at 870°Cfor 2 h; In the condition of annealing at 830°C for 3 h, quenching at 1200 °C around, and tempering temperature range of 400 °C-700 °C, W6Mo5Cr4V2Si steel showed the highest hardness at tempering of 560 °C around, which is about 66.7 HRC. The tempering structure of this steel was mainly composed by needle or strip-typed martensite, a small amount of residual austenite, and carbide particles.

Effect of particle size on erosion measurements and predictions in annular flow for an elbow

Wear ◽  
2020 ◽  
pp. 203579
Author(s):  
G. Haider ◽  
M. Othayq ◽  
J. Zhang ◽  
R.E. Vieira ◽  
S.A. Shirazi
Keyword(s):  
Particle Size ◽  
Annular Flow ◽  
Effect Of Particle Size
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