Q235焊接接头的缝隙腐蚀行为

喻巧红, 刘超, 庞晓露, 刘泉林, 高克玮

CREVICE CORROSION BEHAVIORS OF Q235 WELD JOINT

YU Qiaohong, LIU Chao, PANG Xiaolu, LIU Quanlin, GAO Kewei

表1 Q235焊接接头在90 ℃模拟溶液中浸泡不同时间后缝隙内外的腐蚀深度

Table 1 Corrosion depths of Q235 weld joint after immersing for different times in the aerated and deaerated simulated groundwater at 90 ℃

Condition	Immersing time / d	D_{MAX, IC}/ μm	D_{MAX, CE}/ μm	D_{UNI, OC}/ μm
Aerated	30	31	-	25
	90	109	-	50
	180	209	-	WM 90, BM 20
Deaerated	30	2	42	≈0
	90	10	WM 57; BM 22	≈0
	180	155	60	WM<8, BM<4