研究了Mo、Nb、Ta、Ti合金元素对新型Co-Al-W合金耐腐蚀性能的影响.结果表明,Mo、Nb、Ta、Ti的加入可以提高合金在NaCl溶液中的耐腐蚀性能.相对于9.8W合金,2Mo合金的耐腐蚀性能最好,2Nb和2Ta居中,2Ti合金较差.在不同pH NaCl溶液中,各种合金均会遭受到严重的腐蚀,蚀坑多发生在晶界处.点蚀发生是由于Cl-从溶液中迁移至蚀孔所致.
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