scholarly journals Effect of alloying additions onK ISCC of ultrahigh strength NiSiCr steel

1994 ◽  
Vol 17 (6) ◽  
pp. 633-641
Author(s):  
S V Kamat ◽  
G Malakondaiah ◽  
M Srinivas ◽  
J Marthanda Murthy ◽  
P Rama Rao
Keyword(s):  
Alloying Additions ◽  
Ultrahigh Strength ◽  
Effect Of Alloying

Transformation of Deformed Austenite at Temperatures above the Ae3

2012 ◽  
Vol 706-709 ◽  
pp. 2740-2745
Author(s):  
John J. Jonas ◽  
Vladimir V. Basabe ◽  
Chiradeep Ghosh
Keyword(s):  
Phase Diagrams ◽  
Stored Energy ◽  
Alloying Additions ◽  
Retarding Effect ◽  
Effect Of Alloying

Recent observations regarding the transformation of deformed austenite are reviewed. It is shown that superequilibrium ferrite and pearlite can be formed at temperatures well above the Ae3 and Ae1, respectively. The role of the stored energy associated with the introduction of the dislocations introduced by the deformation is discussed. It is shown that the forward dynamic transformation into ferrite and pearlite is several orders of magnitude faster than the reverse static transformation back into austenite. The retarding effect of alloying additions such as niobium is also outlined. The results are interpreted in terms of the effect of deformation on the modified phase diagrams pertaining to the transformation of deformed austenite.

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