4种耐蚀合金在超超临界锅炉烟气冷凝液中的腐蚀行为研究

赵康, 李晓琦, 王铭滔, 刘宇茜, 姜华伟, 杨启容, 王力伟

Corrosion Behavior of Four Corrosion-resistant Alloys in Ultra-supercritical Boiler Flue Gas Condensate

ZHAO Kang, LI Xiaoqi, WANG Mingtao, LIU Yuxi, JIANG Huawei, YANG Qirong, WANG Liwei

表1 4种耐蚀合金的化学成分

Table 1 Chemical compositions of the four materials (mass fraction / %)

Material C Cr Ni Mo Cu N Si Mn S P W Co Al Ti Nb Fe 254SMo 0.012 20.30 17.9 6.1 0.77 0.2 0.43 0.18 0.001 0.022 --- --- --- --- --- Bal. 316L 0.02 17.5 10.4 2.7 --- 0.15 0.4 1.2 0.01 0.02 --- --- --- --- --- Bal. Inconel 740H 0.03 25.0 48.27 0.5 --- --- 0.5 0.3 --- --- --- 20 0.9 1.8 2.0 Bal. C276 0.001 15.88 57.69 15.64 --- --- 0.03 0.52 --- --- 3.38 1.51 --- --- --- Bal.