溶解氧和溫度對06Cr17Ni12Mo2Ti不銹鋼在超臨界水中應力腐蝕的影響

陸輝; 沈朝; 張樂福; 唐睿; 張強

doi:10.13374/j.issn2095-9389.2015.11.010

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溶解氧和溫度對06Cr17Ni12Mo2Ti不銹鋼在超臨界水中應力腐蝕的影響

doi: 10.13374/j.issn2095-9389.2015.11.010

陸輝¹,
沈朝¹,
張樂福^1, ,,
唐睿²,
張強²

1. 上海交通大學核科學與工程學院, 上海 200240;
2. 中國核動力研究設計院, 成都 610041

基金項目:

國家重點基礎研究發展計劃資助項目(2007CB209800)

詳細信息

通訊作者:
張樂福,E-mail:lfzhang@sjtu.edu.cn

中圖分類號: TG142.71;TL341
計量
- 文章訪問數: 217
- HTML全文瀏覽量: 32
- PDF下載量: 14
- 被引次數: 0
出版歷程
- 收稿日期: 2014-07-26
- 網絡出版日期: 2021-07-10

Effects of dissolved oxygen and temperature on the stress corrosion of 06Cr17Ni12Mo2Ti stainless steel in supercritical water

1. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2. Nuclear Power Institute of China, Chengdu 610041, China

摘要

摘要: 通過慢應變速率拉伸試驗,在超臨界水環境中研究了溶解氧和溫度對06Cr17Ni12Mo2Ti不銹鋼的應力腐蝕開裂傾向的影響規律.試驗結果表明:在含不同溶解氧量(0/200/2000μg·kg^-1)的450℃和550℃超臨界水環境中,不銹鋼都呈現出不同程度的應力腐蝕開裂傾向.隨著水中溶解氧含量的增加,不銹鋼的應力腐蝕開裂傾向更為明顯.隨著溫度的上升,應力腐蝕開裂傾向反而會下降.在含不同溶解氧量(0/200/2000μg·kg^-1)的650℃超臨界水環境中,不銹鋼只發生塑性斷裂,未發現應力腐蝕開裂傾向,并且溶解氧對其影響也不是很明顯.
- 超臨界水 /
- 奧氏體不銹鋼 /
- 應力腐蝕開裂 /
- 慢應變速率試驗 /
- 拉伸試驗
Abstract: The effects of dissolved oxygen(DO) and temperature on the stress corrosion cracking(SCC) of 06Cr17Ni12Mo2 Ti stainless steel(SS) in supercritical water environments were investigated by slow strain rate tensile tests(SSRT). It is found that the SCC susceptibility of the stainless steel is observed in 450℃ and 550℃ supercritical water environments containing different amounts of dissolved oxygen(0/200/2000 μg·kg^-1). The effect of dissolved oxygen on the SCC susceptibility is more remarkable with increasing amount of dissolved oxygen. However,the SCC susceptibility decreases with the increase of temperature. In 650℃ supercritical water environments containing different amounts of dissolved oxygen(0/200/2000 μg·kg^-1),ductile fracture can be found,but the SCC susceptibility is not observed. In these environments,the effect of DO is negligible.
- supercritical water /
- austenitic stainless steel /
- stress corrosion cracking /
- slow strain rate testing /
- tensile testing