000			01561nab a2200181 4500
005			20260520000949.0
008			260224s2010 xxu
245	0	0	_aPredicting the effect of soil seasonal change on stress corrosion cracking susceptibility of buried pipelines at high pH
260			_a _b _csep. 2010
270			_a13/09/2010 ; 13/09/2010
300			_a14 p. ; 095004
520			_aTranscripción del resumen del autor. Soil seasonal change is believed to be one of the major factors that contribute to high-pH stress corrosion cracking (SCC) of underground pipelines, although the specific role and mechanisms of the soil seasonal change in the SCC susceptibility are not clearly understood. This study is directed at investigating this role and mechanisms of the soil seasonal change through mathematical modeling. The temporal and spatial variation, with seasonal changes in the soil, of the solution chemistry and the pipe steel potential and corrosion rate in a coating disbonded region is explored. With the pipe potential at the holiday varied by soil seasonal wet and dry cycles, the model results suggest that the susceptible conditions for high-pH SCC could be formed during soil wet seasons and seasonal transitions. Depending on the level of drought and the effectiveness of cathodic protection (CP) during dry seasons, the susceptible conditions of the high-pH SCC may or may not be possible to form.
581			_a9
773	0		_tCorrosion _g66
942			_cARTICULO
100	1		_aSong, F.M. _924976
999			_c176897 _d176897