scholarly journals Effect of magnetic field on TTT diagram of successive γ→ϵ'→α' martensitic transformation in SUS304L stainless steel

2009 ◽  
Vol 156 ◽  
pp. 012013
Author(s):  
J H Lee ◽  
T Fukuda ◽  
T Kakeshita
Keyword(s):  
Magnetic Field ◽  
Stainless Steel ◽  
Martensitic Transformation ◽  
Ttt Diagram

Effect of Magnetic Field on Isothermal Martensitic Transformation in SUS304L Stainless Steel

2007 ◽  
Vol 561-565 ◽  
pp. 2333-2336 ◽  
Author(s):  
Jae Hwa Lee ◽  
Takashi Fukuda ◽  
Tomoyuki Kakeshita
Keyword(s):  
Magnetic Field ◽  
Stainless Steel ◽  
Martensitic Transformation ◽  
Isothermal Holding ◽  
Holding Time ◽  
Solution Treated ◽  
Α Phase ◽  
Fcc Phase ◽  
Isothermal Martensitic Transformation

We have found that solution-treated or sensitized SUS304L stainless steel transforms isothermally from the γ (fcc)-phase to the α' (bcc) martensite via the ε' (hcp) martensite, that is, the amount of the α'-phase increases with increasing holding time. By applying magnetic field, the α' martensite can be induced in the ε'-plate when the steel has a sufficiently large ε' plate formed beforehand by isothermal holding. However, the α' martensite cannot be induced by magnetic field in the ε'-plate formed beforehand by a deformation-induced transformation.

TTT diagram of martensitic transformation under magnetic field in a Ni45Co5Mn36.5In13.5 (at.%) alloy

2013 ◽  
Vol 577 ◽  
pp. S380-S382 ◽  
Author(s):  
Yong-hee Lee ◽  
Ju-young Choi ◽  
Takashi Fukuda ◽  
Tomoyuki Kakeshita
Keyword(s):  
Magnetic Field ◽  
Martensitic Transformation ◽  
Ttt Diagram

scholarly journals On the Fluctuation Induced Excess Conductivity in Stainless Steel Sheathed MgB2 Tapes

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Suchitra Rajput ◽  
Sujeet Chaudhary
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Stainless Steel ◽  
Coherence Length ◽  
Three Dimensional ◽  
Excess Conductivity ◽  
Scaling Functions ◽  
Critical Fluctuations ◽  
Scaling Models

We report on the analyses of fluctuation induced excess conductivity in the - behavior in the in situ prepared MgB2 tapes. The scaling functions for critical fluctuations are employed to investigate the excess conductivity of these tapes around transition. Two scaling models for excess conductivity in the absence of magnetic field, namely, first, Aslamazov and Larkin model, second, Lawrence and Doniach model, have been employed for the study. Fitting the experimental - data with these models indicates the three-dimensional nature of conduction of the carriers as opposed to the 2D character exhibited by the HTSCs. The estimated amplitude of coherence length from the fitted model is ~21 Å.

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