Effect of deformation in the intercritical temperature range on the tendency of steel 40KhN2MA towards reversible temper brittleness

1992 ◽  
Vol 34 (12) ◽  
pp. 730-732
Author(s):  
K. G. Farkhutdinov ◽  
E. E. Sinitsyna
Keyword(s):  
Temper Brittleness ◽  
Intercritical Temperature Range ◽  
Intercritical Temperature ◽  
Temperature Range ◽  
Reversible Temper ◽  
Reversible Temper Brittleness ◽  
Steel 40Khn2ma

INFLUENCE OF TIME-TEMPERATURE PARAMETERS OF LONG-DURATION EXPOSURE ON TRANSFORMATIONS IN STRUCTURAL STEELS (review)

2021 ◽  
pp. 15-23
Author(s):  
E.A. Eliseev ◽  
◽  
G.S. Sevalnev ◽  
A.V. Doroshenko ◽  
M.E. Druzhinina ◽  
...  
Keyword(s):  
Low Temperature ◽  
Chemical Elements ◽  
Structural Steels ◽  
Holding Time ◽  
Temper Brittleness ◽  
Brittleness Temperature ◽  
Temperature Range ◽  
Long Duration ◽  
Reversible Temper ◽  
Reversible Temper Brittleness

Low-temperature nitriding of steels is usually carried out in the temperature range of development of reversible temper brittleness. The holding time at these temperatures significantly exceeds the holding time during normal tempering, which can negatively affect the properties of steel. The article considers theories that explain the processes occurring in steels in the temper brittleness temperature range. It may be concluded that views linking the embrittlement of steel with alloying elements such as nickel in its content are not confirmed by the experiments; at the same time ideas based on classical views about the diffusion of chemical elements explain the processes in steel better.

Steel 15Kh2NMFA cold brittleness factors after annealing in the temperature range for reversible temper brittleness

Metallurgist ◽  
2012 ◽  
Vol 55 (9-10) ◽  
pp. 739-744
Author(s):  
S. A. Nikulin ◽  
A. V. Kudrya ◽  
E. A. Sokolovskaya ◽  
E. I. Kuzko ◽  
S. V. Skorodumov ◽  
...  
Keyword(s):  
Cold Brittleness ◽  
Temper Brittleness ◽  
Temperature Range ◽  
Reversible Temper ◽  
Steel 15Kh2nmfa ◽  
Reversible Temper Brittleness

Thermal and thermomechanical hardening of steel 40G2S using quenching from the intercritical temperature range

1987 ◽  
Vol 29 (7) ◽  
pp. 511-514
Author(s):  
M. L. Bernshtein ◽  
V. F. Markovskii ◽  
V. A. Zhukov
Keyword(s):  
Intercritical Temperature Range ◽  
Intercritical Temperature ◽  
Temperature Range ◽  
Thermomechanical Hardening

Influence of cooling rate from the intercritical temperature range on strain hardening and aging of 05G2S2 steel

1986 ◽  
Vol 28 (11) ◽  
pp. 816-819
Author(s):  
B. M. Bronfin ◽  
M. I. Gol'dshtein ◽  
V. P. Shveikin
Keyword(s):  
Strain Hardening ◽  
Cooling Rate ◽  
Intercritical Temperature Range ◽  
Intercritical Temperature ◽  
Temperature Range

Effect of Heating in the Intercritical Temperature Range on Formation of Austenite and Structure of Ultralow-Carbon Steel

2021 ◽  
Vol 12 (1) ◽  
pp. 167-171
Author(s):  
O. V. Selivanova ◽  
O. N. Polukhina ◽  
V. A. Khotinov ◽  
A. Yu. Zhilyakov ◽  
A. S. Yurovskikh ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Intercritical Temperature Range ◽  
Intercritical Temperature ◽  
Temperature Range ◽  
Ultralow Carbon

Effect of chromium on the susceptibility of low-carbon steel to reversible temper brittleness

1969 ◽  
Vol 11 (4) ◽  
pp. 314-316 ◽  
Author(s):  
A. I. Rizol' ◽  
T. P. Vashchilo
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Temper Brittleness ◽  
Low Carbon ◽  
Reversible Temper ◽  
Reversible Temper Brittleness

Formation of Grain and Packet-Lath Structure in Low-Carbon Steels After Quenching from Intercritical Temperature Range

2019 ◽  
Vol 61 (1-2) ◽  
pp. 101-107
Author(s):  
S. K. Berezin ◽  
A. A. Shatsov ◽  
D. O. Panov ◽  
S. K. Greben’kov
Keyword(s):  
Carbon Steels ◽  
Low Carbon ◽  
Intercritical Temperature Range ◽  
Low Carbon Steels ◽  
Intercritical Temperature ◽  
Temperature Range ◽  
Lath Structure

scholarly journals Formation of Medium Carbon TRIP Steel Microstructure During Annealing in the Intercritical Temperature Range

2014 ◽  
Vol 59 (3) ◽  
pp. 1017-1022 ◽  
Author(s):  
A. Kokosza ◽  
J. Pacyna
Keyword(s):  
Trip Steel ◽  
Retained Austenite ◽  
Annealing Temperature ◽  
Volume Fraction ◽  
Austenite Formation ◽  
Two Phase ◽  
Intercritical Temperature Range ◽  
Steel Microstructure ◽  
Intercritical Temperature ◽  
Temperature Range

Abstract The paper presents the results of research conducted on austenite formation in the microstructure of 41MnSi6-5 TRIP steel during annealing in the intercritical temperature range. The influence of the annealing temperature on the volume fraction of retained austenite in the microstructure of the investigated steel after water quenching was also determined.Based on the results of a dilatometric analysis and metallographic investigation it was noted that the pearlite-to-austenite transformation does not occur at a constant temperature, which is referred to as Ac1, but rather within some, possible to determine, temperature range which is bounded by the values Ac1s and Ac1f.Moreover, through X-ray analysis, it was stated that the largest amount of retained austenite remained in the samples which were annealed at the lowest temperatures in the Ac1s-Ac1f range prior to quenching. Increasing the annealing temperature to a two-phase a+g (ferrite + austenite) range, resulted in a decrease of the volume fraction of retained austenite.It was also found that during annealing in Ac1s÷Ac1f temperature range, austenite is also formed from ferrite simultaneously. This could be the reason for the decrease the carbon content in the formed austenite and consequently the decrease in the volume fraction of retained austenite in the microstructure of the investigated steel, which was quenched after having reached temperatures higher than Ac1s + 30°C.

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