TY  - EJOU
AU  - Dai, Shi 
AU  - Lian, Yanping 

TI  - Anisotropic	Mechanical	Behaviors	of	Alsi10Mg	Alloy	Fabricated	by	 Additive	Manufacturing:	Experiments	and	Modeling
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

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

AB  - In	recent	years,	metal	additive	manufacturing	(AM)	has	gained	increasing	attention	from	various	industries.	
However,	there	are	few	studies	on	the	thermal	deformation	behavior	of	additively	manufactured	metallic	
components,	 which	 is	 vital	 to	 pushing	 its	 applications’	 boundary.	 In	 this	 work,	 we	 first	 experimentally	
investigate	 the	 mechanical	 behavior	 of	 AlSi10Mg	 produced	 by	 laser	 powder	 bed	 fusion	 under	 different	
temperatures	and	strain	rates.	A	crystal	plasticity	finite	element	model	is	adopted	to	provide	insights	into
the	intrinsic	deformation	mechanisms.	The	model	is	validated	by	comparing	it	with	the	flow	behaviors	and	
dislocation	evolutions	observed	in	experiments	at	different	conditions.	The	strain	distributions	at	different	
temperatures	and	strain	rates	are		analyzed,	and	the	softening	effect	of	AlSi10Mg	is	revealed.	In	addition,	by	
using	 the	 samples	 built	 in	 different	 directions,	 the	 anisotropic	 behaviors	 of	 additively	 manufactured	
AlSi10Mg	parts	are	investigated.	The	results	demonstrate	that	the	microstructure	presents	'fiber	texture'	
due	to	the	preferred	orientation	of	grains,	and	grains	with	<100>	direction	parallel	to	the	load	direction	have	
large	plastic	deformation	and	the	stress	concentration	along	their	<110>	direction.
KW  - Additive	manufacturing;	AlSi10Mg;	crystal	plasticity	finite	element;	anisotropic

DO  - 10.32604/icces.2023.010175