Effects of impurities and alloying elements on reheat cracking sensitivity of 720 N/mm2class high‐strength steel

1995 ◽  
Vol 9 (12) ◽  
pp. 960-966
Author(s):  
K Tamaki ◽  
J Suzuki ◽  
K Imai ◽  
Y Horii ◽  
T Kumagai
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Alloying Elements ◽  
Reheat Cracking ◽  
Cracking Sensitivity

Macrosegregation Characteristics of Ferrite and Austenite Stabilizer Elements in Large Size High Strength Steel Ingot

2020 ◽  
Vol 846 ◽  
pp. 82-86
Author(s):  
Abdelhalim Loucif ◽  
Chun Ping Zhang ◽  
Mohammad Jahazi ◽  
Louis Philippe Lapierre-Boire
Keyword(s):  
High Strength Steel ◽  
Steel Ingot ◽  
High Strength ◽  
Alloying Elements ◽  
X Ray Diffraction ◽  
Alloying Element ◽  
Solidification Mode ◽  
Large Size ◽  
Austenite Stabilizer ◽  
Good Agreement

In the present work, the segregation degrees of ferrite and austenite stabilizer alloying elements were analyzed for a high strength steel. For this, samples were taken from the surface and center of the hot-top and the upper section of a 40 MT ingot. The results showed that the positive segregation ratios for all the investigated elements were higher in the ingot center than in the surface with higher values for austenite stabilizer elements. The increase of austenite alloying element stabilizers was accompanied by the change in the primary solidification mode of the austenite phase. The obtained results are in good agreement with the observed presence of austenite, revealed by X-ray diffraction analysis, stabilized by the austenite alloying elements.

scholarly journals Influence of Impurity and Alloying Elements on SR Cracking of 720N/mm2 Class High Strength Steel.

1995 ◽  
Vol 13 (2) ◽  
pp. 256-261
Author(s):  
Koreaki Tamaki ◽  
Kaneyuki Imai ◽  
Jippei Suzuki ◽  
Yukihiko Horii ◽  
Tatsuya Kumagai
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Alloying Elements
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