会议论文

The stress corrosion and protection of primary side in steam generator

中文

2013

10-14

中国电机工程学会电厂化学2013学术年会

中国电机工程学会电厂化学2013学术年会论文集

2013-11-21

长沙

中国电机工程学会

本校为第一机构

一回路应力腐蚀破裂也称一次侧应力腐蚀破裂(Primary Water Stress Corrosion Cracking,PWSCC),在材料为Incone600的蒸汽发生器中,一次侧应力腐蚀破裂是其传热管应力腐蚀的主要形式.本文首先从多个方面综述了应力腐蚀破裂的基本特征,其次简单描述了应力腐蚀破裂的产生机理(阳极溶解机理和氢致开裂机理),然后从材料因素、应力因素、环境因素三个方面对一次侧应力腐蚀破裂影响因素进行了简要说明,并且从解决材料问题、降低残余应力、改善腐蚀性环境等方面提出了相应的一次侧应力腐蚀破裂防护措施,并在最后对未来一次侧应力腐蚀破裂的研究方向进行了展望.

　　Primary water stress corrosion cracking(PWSCC) was the main form of the stress corrosion of heat-pipes in the steam generator using lnconel 600.The essential characteristics of the PWSCC were reviewed by several aspects in this paper, while the mechanism of PWSCC, that is anodic dissolution and hydrogen induces cracking, was briefly described.The influence factors of PWSCC were introduced in three aspects, which covered material, stress and environment , and the protective measures of PWSCC were put forward by solving the problem of materia...