@Article{icces.2023.09286,
AUTHOR = {Shuaiqi Fan, Chenwen Tian, Yunpeng Liu, Ziguang Chen},
TITLE = {Peridynamic	Investigation	of	Surface	Stability	in	Stress-Assisted	 Corrosion},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {25},
YEAR = {2023},
NUMBER = {4},
PAGES = {1--1},
URL = {http://www.techscience.com/icces/v25n4/53873},
ISSN = {1933-2815},
ABSTRACT = {The	 peridynamic stress-assisted	 corrosion	model	is	 used	 to	 study	 the	 stability	 of	 the	 corrosion	 front	 of	
metallic	materials	 under	 tensile	mechanical	load.	 The	 results	 show	 that	 the	 solution	 diffusion	 trends	 to	
smooth	the	corrosion	front,	while	stress	corrosion	roughens	the	corrosion	front	and	leads	to	higher	stress	
concentrations.	Compared	to	the	initial	concave	profile,	the	initial	convex	profile	helps	to	reduce	the	stressassisted	 corrosion	 rate	 and	 reduces	 the	 role	 of	 stress	 in	 stress-assisted	 corrosion.	 The	 critical	 stress	 of	
stress-assisted	corrosion	is	introduced	in	the	research,	below	which	the	roughness	of	the	corrosion	front	
gradually	 decreases,	 meaning	 that	 the	 corrosion	 front	 is	 stable.	 The	 critical	 stress	 of	 stress-assisted	
corrosion	 is	 found	 through	 the	 real-time	 roughness	 evolution	 of	 the	 corrosion	 front.	 By	 analyzing	 the	
influence	of	the	mechanical-chemical	coupling	coefficient	and	the	applied	potential	on	critical	stress,	it	is	
found	 that	 the	influence	of	external	voltage	on	critical	stress	is	smaller	 than	 that	of	mechanical-chemical	
coupling	coefficient.	Applying	this	peridynamic	stress-assisted	corrosion	model	to	the	corrosion	of	metals	
with	initial	holes	or	impurities	 finds	that	the	impurities	help	maintain	the	stability	of	the	corrosion	 front	
compared	with	holes,	thereby	reducing	the	risk	of	stress	corrosion	cracking.},
DOI = {10.32604/icces.2023.09286}
}