4种改性的铝化物涂层对DZ38G合金热腐蚀性能的影响

吴多利, 张洪宇, 韦华, 郑启, 金涛, 孙晓峰

Hot Corrosion Behavior of Four Modified Aluminide Coatings on DZ38G Alloy

WU Duoli, ZHANG Hongyu, WEI Hua, ZHENG Qi, JIN Tao, SUN Xiaofeng

表1 4种涂层外层元素的含量

Table 1 Chemical compositions of the out layer of four aluminide coatings

Coating Cr Co Ti Al Si Ni NiCr-CrAl 7 9 1 23 --- Bal. Co-Al --- 14 --- 33 --- Bal. Al-Si 5 9 1 22 3.5 Bal. Al-Ti --- --- 5 30 --- Bal.