研究目的
Investigating the effect of laser shock processing on the oxidation resistance of laser additive manufactured Ti6Al4V titanium alloy.
研究成果
LSP significantly improves the oxidation resistance of LAM-fabricated Ti6Al4V by reducing the rate of weight gain and altering the microstructure of the oxide layer to include more aluminum-rich layers, which prevent oxygen diffusion.
研究不足
The study focuses on the oxidation resistance of Ti6Al4V alloy fabricated through LAM and treated with LSP, without exploring other surface treatments or alloys.
1：Experimental Design and Method Selection:
The study involved the oxidation of Ti6Al4V samples fabricated through LAM before and after LSP at temperatures ranging from 400 to 800 °C for 1 to 50 h in air.
2：Sample Selection and Data Sources:
Ti6Al4V titanium alloy samples were used, with their chemical composition provided.
3：List of Experimental Equipment and Materials:
A Q-switched Nd:YAG laser was used for LSP, and a timer-controlled resistance furnace (KSL-1200X) for oxidation tests.
4：Experimental Procedures and Operational Workflow:
Samples were polished, cleaned, and then subjected to LSP before oxidation tests. Weight gain was measured using an electronic balance.
5：Data Analysis Methods:
The oxidation kinetics were analyzed using parabolic oxidation kinetics law and Arrhenius type equation.
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