yielding behavior
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Author(s):  
Abigail K. Grosskopf ◽  
Olivia A. Saouaf ◽  
Hector Lopez Hernandez ◽  
Eric A. Appel

Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6121
Author(s):  
Jian-Zhi Chen ◽  
Qin Du ◽  
Guang-Ping Zhang ◽  
Bin Zhang

Cold-rolled EA4T steel was heat-treated by inter-critical holding at 755 °C for 90 s, 120 s, 180 s, and 240 s, respectively, and then quenching in water. The tensile testing results of the EA4T specimens show an evident transition from the discontinuous yielding to the continuous yielding of the steel specimens by prolonging the holding time. A novel relationship between the discontinuous yielding behavior of tensile-deformed steel specimens and the carbide size was proposed based on experimental results and Cottrell’s theory. The model may provide a new clue for avoiding discontinuous yielding and improving mechanical properties of metals with static strain aging behaviors.


2021 ◽  
Vol 161 ◽  
pp. 106381
Author(s):  
Yongjie Wang ◽  
Qian Su ◽  
Chao Wang ◽  
Carlo G. Prato
Keyword(s):  

2021 ◽  
Author(s):  
Abigail Grosskopf ◽  
Olivia Saouaf ◽  
Hector Lopez Hernandez ◽  
Eric Appel

Polymer-Nanoparticle hydrogels are a unique class of self-assembled, shear-thinning, yield-stress fluids which have demonstrated potential utility in many impactful applications. Here we present a thorough analysis of the gelation and yielding behavior of these materials with respect to the polymer and nanoparticle component stoichiometry. Through comprehensive rheological and diffusion studies, we reveal insights into the structural dynamics of the polymer nanoparticle network which identify that stoichiometry plays a key role in gelation and yielding, ultimately enabling the development of hydrogel formulations with unique shear-thinning and yield-stress behaviors. Access to these materials opens new doors for interest- ing applications in a variety of fields including tissue engineering, drug delivery, and controlled solution viscosity.


Author(s):  
Ron VanHouten ◽  
Nichole Morris ◽  
Curtis Craig ◽  
DeLon Dixon ◽  
Jonathan Hochmuth
Keyword(s):  

2021 ◽  
Vol 65 (5) ◽  
pp. 1089-1102
Author(s):  
Elis M. S. Wendt ◽  
Rubens R. Fernandes ◽  
Jonathan F. Galdino ◽  
Diogo E. V. Andrade ◽  
Admilson T. Franco

Author(s):  
Abigail Grosskopf ◽  
Olivia Saouaf ◽  
Hector Lopez Hernandez ◽  
Eric Appel

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