测试了45钢和A_3钢氧氮化层对模拟酸雨的抗蚀性,氧氮化时间2～3小时,温度:560℃.该氧氮化层的电化腐蚀速率比处理前降低四倍以上.所使用的酸雨pH是4.2. The corrosion resistance of 45 steel and A 3 steel oxynitride to simulated acid rain was tested and the oxynitriding time was 2 to 3 hours and the temperature was 560 ° C. The electrochemical corrosion rate of the oxynitride layer was reduced by more than four times than that before treatment. The acid rain pH used is 4.2.