Study of the alternative mechanism behind the constant strain hardening rate in high‑nitrogen steels

2020 ◽  
Vol 170 ◽  
pp. 110726
Author(s):  
Dávid Molnár ◽  
Song Lu ◽  
Staffan Hertzman ◽  
Göran Engberg ◽  
Levente Vitos
Keyword(s):  
Strain Hardening ◽  
Alternative Mechanism ◽  
High Nitrogen ◽  
Nitrogen Steels ◽  
Strain Hardening Rate

Effect of precipitation on hot formability of high nitrogen steels

2010 ◽  
Vol 528 (1) ◽  
pp. 519-525 ◽  
Author(s):  
E. Erisir ◽  
U. Prahl ◽  
W. Bleck
Keyword(s):  
High Nitrogen ◽  
Nitrogen Steels

Development of High Nitrogen Steels at Böhler Edelstahl GmbH Kapfenberg

1999 ◽  
Vol 318-320 ◽  
pp. 227-232 ◽  
Author(s):  
J. Bernauer ◽  
G. Lichtenegger ◽  
G. Hochörtler ◽  
H. Lenger
Keyword(s):  
High Nitrogen ◽  
Nitrogen Steels

The electroslag remelting of high-nitrogen steels

2004 ◽  
Vol 39 (24) ◽  
pp. 7275-7283 ◽  
Author(s):  
A. Mitchell ◽  
H. Frederiksson
Keyword(s):  
Electroslag Remelting ◽  
High Nitrogen ◽  
Nitrogen Steels

scholarly journals Correlation of Grain Size, Stacking Fault Energy, and Texture in Cu-Al Alloys Deformed under Simulated Rolling Conditions

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Ehab A. El-Danaf ◽  
Mahmoud S. Soliman ◽  
Ayman A. Al-Mutlaq
Keyword(s):  
Grain Size ◽  
Strain Hardening ◽  
Mechanical Twinning ◽  
Al Alloys ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Wide Range ◽  
Orientation Density ◽  
Pure Cu ◽  
Strain Hardening Rate

The effect of grain size and stacking fault energy (SFE) on the strain hardening rate behavior under plane strain compression (PSC) is investigated for pure Cu and binary Cu-Al alloys containing 1, 2, 4.7, and 7 wt. % Al. The alloys studied have a wide range of SFE from a low SFE of 4.5 mJm−2for Cu-7Al to a medium SFE of 78 mJm−2for pure Cu. A series of PSC tests have been conducted on these alloys for three average grain sizes of ~15, 70, and 250 μm. Strain hardening rate curves were obtained and a criterion relating twinning stress to grain size is established. It is concluded that the stress required for twinning initiation decreases with increasing grain size. Low values of SFE have an indirect influence on twinning stress by increasing the strain hardening rate which is reflected in building up the critical dislocation density needed to initiate mechanical twinning. A study on the effect of grain size on the intensity of the brass texture component for the low SFE alloys has revealed the reduction of the orientation density of that component with increasing grain size.

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