敏化的1Cr18Ni9Ti在炼油厂含连多硫酸水样中的应力腐蚀

中国腐蚀与防护学报

1990, Vol. 10

Issue (3): 271-274

研究报告

本期目录 | 过刊浏览

敏化的1Cr18Ni9Ti在炼油厂含连多硫酸水样中的应力腐蚀

段学章;许素珍;李铁藩

中国科学院金属腐蚀与防护研究所;中国科学院金属腐蚀与防护研究所;中国科学院金属腐蚀与防护研究所

SCC OF SENSITIZED 1Cr18Ni9Ti STAINLESS STEEL IN H_2S_xO_6 SOLUTION IN REFINERY

Duan Xuezhang Xu Suzhen and Li Tiefan (Institute of Corrosion and Protection of Metals;Academia Sinica)

全文: PDF(1175 KB)

摘要: <正> 连多硫酸(H_zS_xO_6,x=2,3,4,5)容易引起敏化的奥氏体不锈钢发生应力腐蚀开裂。前人测定不锈钢在Samens溶液中的阳极极化曲线,或用U型试样进行应力蚀研究。本工作采用炼油厂的现场水样,测定敏化的1Cr18Ni9Ti不锈钢的电化学行为和应力腐蚀敏感性。

Abstract：Stress Corrosion Cracking(SCC)susceptibility of sensitized 1 Cr18Ni9Ti austenitic steel was investigated by measuring potgntiody- namie polarization curves(sean rates:10 mV/min and 20 mV/s)and using the slow strain rate test(SSRT)in the polythionic acid solution formed in the petroleum refinery. The results showed that there was a critical potential range between +60 and +1200 mV(SCE)in H_2S_xO_6 solution in refinery for stress corrosion cracking of sensitized 1 Cr18Ni9Ti stainless steel to occur. The metallographic studies of the fractured surface by SEM revealed intergranular and quasi-cleavage fracture in the critical potential zone.

收稿日期: 1990-06-25

基金资助:中国科学院腐蚀科学开放实验室资助

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引用本文:

段学章;许素珍;李铁藩. 敏化的1Cr18Ni9Ti在炼油厂含连多硫酸水样中的应力腐蚀[J]. 中国腐蚀与防护学报, 1990, 10(3): 271-274.
. SCC OF SENSITIZED 1Cr18Ni9Ti STAINLESS STEEL IN H_2S_xO_6 SOLUTION IN REFINERY. J Chin Soc Corr Pro, 1990, 10(3): 271-274.

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1990/V10/I3/271

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