The role of various Zr additions in static softening behavior of Al-Zn-Mg-Cu alloys during interval holding of double-stage hot deformation

2019 ◽  
Vol 792 ◽  
pp. 1112-1121 ◽  
Author(s):  
Kunyang Chen ◽  
Jie Tang ◽  
Fulin Jiang ◽  
Jie Teng ◽  
Dingfa Fu ◽  
...  
Keyword(s):  
Hot Deformation ◽  
Softening Behavior ◽  
Cu Alloys ◽  
Static Softening

Study of Nb Solubility in Hot Charging Process

2021 ◽  
Vol 1016 ◽  
pp. 832-839
Author(s):  
Beatriz López ◽  
Beatriz Pereda ◽  
Felipe Bastos ◽  
J.M. Rodriguez-Ibabe
Keyword(s):  
Static Recrystallization ◽  
Solute Drag ◽  
Dissolution Behavior ◽  
Drag Effect ◽  
Experimental Procedure ◽  
Solute Drag Effect ◽  
Softening Behavior ◽  
Static Softening ◽  
Indirect Evaluation ◽  
Do So

The aim of this work is to investigate the dissolution behavior of Nb in hot charging hot rolling configurations. To do so, an indirect experimental procedure is used to quantify the amount of Nb present in solution before rolling. The method is based on the effect of dissolved Nb on static recrystallization kinetics due to its solute drag effect. After different thermal cycles, simulating cold and hot charging conditions, double hit torsion tests have been performed with a 0.23%C steel microalloyed with 0.03% Nb. By means of these tests, the static softening behavior has been determined. Comparison of the recrystallization times allows indirect evaluation of the amount of Nb in solid solution after each treatment. The results have been correlated with the precipitation state of the samples.

scholarly journals The synergistic role of Mn and Zr/Ti in producing θ′/L12 co-precipitates in Al-Cu alloys

2020 ◽  
Vol 194 ◽  
pp. 577-586 ◽  
Author(s):  
Jonathan D. Poplawsky ◽  
Brian K. Milligan ◽  
Lawrence F. Allard ◽  
Dongwon Shin ◽  
Patrick Shower ◽  
...  
Keyword(s):  
Cu Alloys
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