Material Corrosion and Plate-Out Test of Types 304L and 316L Stainless Steel

Zapp, P.E.

Savannah River Site (S.C.)

关键词: Corrosion;    36 Materials Science;    Thickness;    Stainless Steel-316L;    Nitric Acid;   

DOI  :  10.2172/774482
RP-ID  :  WSRC-TR-2000-00434
RP-ID  :  AC09-96SR18500
RP-ID  :  774482

美国|英语

来源: UNT Digital Library

【 摘 要 】

Corrosion and plate-out tests were performed on 304L and 316L stainless steel in pretreated Envelope B and Envelope C solutions. Flat coupons of the two stainless steels were exposed to 100 degrees C liquid and to 74 degrees C and 88 degrees C vapor above the solutions for 61 days. No significant corrosion was observed either by weight-loss measurements or by microscopic examination. Most coupons had small weight gains due to plate-out of solids, which remained to some extent even after 24-hour immersion in 1 N nitric acid at room temperature. Plate-out was more significant in the Envelope B coupons, with film thickness from less than 0.001 in. to 0.003-inches.