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尝试了通过微弧氧化陶瓷化处理来提高ＴｉＡｌ 合金的抗高温氧化性能。结果表明， 通过微弧氧化处理能在ＴｉＡｌ 合金表面形成具有不同成分的陶瓷层， 但难以形成单一的Ａｌ２Ｏ３ 陶瓷层。在８５０ ℃的氧化实验表明， 不同成分的陶瓷层对ＴｉＡｌ 的抗氧化性能有不同的影响， 有些陶瓷层在氧化过程中剥落， 对ＴｉＡｌ 的抗氧化性能无明显改善； 另有一些陶瓷层与基体粘附性好， 在氧化过程不剥落，能在一定程度上提高ＴｉＡｌ 的抗氧化性能， 但氧仍能通过陶瓷层向内扩散， 在陶瓷层底下形成以Ａｌ２Ｏ３为主的ＴｉＯ２ 和Ａｌ２Ｏ３ 的混合氧化物
Attempts have been made to improve the high temperature oxidation resistance of TiAl alloy by MAO treatment. The results show that ceramic coatings with different composition can be formed on the surface of TiAl alloy by MAO treatment, but it is difficult to form a single Al2O3 ceramic coating. Oxidation experiments at 850 ℃ showed that the ceramic coatings with different compositions had different effects on the oxidation resistance of TiAl. Some ceramic coatings peeled off during the oxidation process and did not improve the oxidation resistance of TiAl significantly. In addition, Good adhesion, no peeling during the oxidation process, can improve the oxidation resistance of TiAl to a certain extent, but the oxygen can still diffuse inward through the ceramic layer, forming a mixed oxidation of Al2O3 and Al2O3 mainly under the ceramic layer Things