TY  - EJOU
AU  - Huang, Qishan 
AU  - Zhou, Haofei 

TI  - Atomistic	Simulations	of	Grain	Boundary	Mediated	Plastic	Deformation	 Mechanisms	in	Nanostructured	Metals
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2023
VL  - 25
IS  - 3
SN  - 1933-2815

AB  - Nanostructured	 metals	 contain	 vast	 amount	 of	 grain	 boundaries	 which	 are	 crucial	 to	 their	 mechanical	
behaviors.	 The	 plastic	 deformation	 mechanisms	 mediated	 by	 grain	 boundaries	 have	 been	 attracted	
increasing	attentions	in	recent	years.	Our	recent	studies	have	been	focused	on	using	atomistic	simulations	
to	 understand	 the	 grain	 boundary	 mediated	 plastic	 deformation	 mechanisms	 including	 deformation	
twinning	initiated	by	dislocation	nucleation	from	grain	boundaries	[1],	cyclic	plastic	deformability	governed	
by	reversible	slip	of	grain	boundary	dislocations	[2],	and	extreme	shear	deformation	of	nanocrystals	induced	
by	 twin	 boundary	 sliding	 [3].	We	 have	 also	 proposed	 a	 misorientation-dependent	 model	 to	 explain	 the	
transition	between	grain	boundary	migration	and	sliding	mechanisms	[4].	Our	works	provide	insights	into	
the	prediction	and	controlling	of	grain	boundary	behaviors	in	nanostructured	metals.
KW  - Atomistic	simulation;	grain	boundary;	nanostructured	metals;	plastic	deformation	mechanism

DO  - 10.32604/icces.2023.010014