Kinetics of decomposition of residual austenite in high-speed steel powders in tempering and cooling in liquid nitrogen

1985 ◽  
Vol 24 (1) ◽  
pp. 86-89
Author(s):  
B. A. Apaev ◽  
B. F. Galkin ◽  
V. S. Mebel'
Keyword(s):  
Liquid Nitrogen ◽  
High Speed ◽  
High Speed Steel ◽  
Residual Austenite ◽  
Kinetics Of Decomposition ◽  
Kinetics Of

Features of induction heating during hardening of tools from high-speed steel

2020 ◽  
pp. 72-75
Author(s):  
A.M. Adaskin
Keyword(s):  
High Frequency ◽  
High Speed ◽  
High Speed Steel ◽  
Salt Bath ◽  
Complete Dissolution ◽  
Carbide Matrix ◽  
Kinetics Of ◽  
Frequency Current ◽  
High Frequency Induction

The fundamental differences in the kinetics of transformations of high-speed steels during heating by high-frequency induction currents (HFC) and in salt baths are considered. At HFC, the high temperature at the "carbide — matrix" boundaries promotes more complete dissolution of carbides in austenite, which improves the quality of the tool. Keywords: high frequency current, salt bath, hardening, high speed steel, interphase boundary. [email protected]

Effect of nitrogen on the austenite cooling transformation kinetics of a high-speed steel

2006 ◽  
Vol 438-440 ◽  
pp. 1143-1145 ◽  
Author(s):  
Mingjia Wang ◽  
Yan Wang ◽  
Yuchun Xing ◽  
Lei Chen
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
Transformation Kinetics ◽  
Kinetics Of

Kinetics of borided AISI M2 high speed steel

Vacuum ◽  
2011 ◽  
Vol 86 (4) ◽  
pp. 391-397 ◽  
Author(s):  
I. Ozbek ◽  
C. Bindal
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
M2 High Speed Steel ◽  
Kinetics Of

Effect of Austenitising Temperature on Microstructural Changes in High-Speed Steel of M2 Type Inoculated with Addition of WC Powder

2013 ◽  
Vol 333 ◽  
pp. 27-32 ◽  
Author(s):  
Alexander S. Chaus ◽  
Matej Beznák ◽  
Ján Porubský ◽  
J. Sojka
Keyword(s):  
Phase Transformations ◽  
High Speed ◽  
Diffusion Processes ◽  
High Speed Steel ◽  
Xrd Analysis ◽  
Solidification Microstructure ◽  
Eutectic Carbides ◽  
Electron Scanning Microscopy ◽  
Powder Addition ◽  
Kinetics Of

The transformation of the solidification microstructure in AISI M2 grade high-speed steel inoculated with powder addition of WC have been studied focusing on the effect of austenitisation. In order to investigate the kinetics of both the microstructure and phase transformations in eutectic carbides, primarily M2C carbide decomposition, upon heat treatments with respect to diffusion processes, electron scanning microscopy, XRD analysis and EDS have been used.

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.

Diffusion Induced Changes in Cast and Wrought M2 High-Speed Steel Subject to Homogenisation Annealing

2019 ◽  
Vol 22 ◽  
pp. 24-33 ◽  
Author(s):  
Alexander S. Chaus ◽  
Martin Sahul ◽  
Matej Bračík
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Speed Steel ◽  
Eutectic Carbide ◽  
M2 High Speed Steel ◽  
Primary Focus ◽  
Induced Changes ◽  
Kinetics Of

The influence of annealing at 1200 °C for 2, 4 and 8 h on the carbide microstructure of AISI M2 type high-speed steel obtained by both the foundry and conventional metallurgy technologies has been studied. The primary focus was on the kinetics of eutectic carbide decomposition and dissolution in both the cast and wrought M2 high-speed steels under the effect of high temperature.

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