论文部分内容阅读
加入不同含量的稀土冶炼了达到目标成分的稀土耐热钢,采用Gleeble-3800型热模拟试验机上进行了850~1050℃温度范围内的热拉伸试验,采用电阻炉在1100℃,1150℃,1200℃下进行了循环氧化试验。结果发现,加入适量稀土提高了耐热钢的热塑性,含稀土0.06%试验钢的断面收缩率比未加稀土的试验钢的平均提高了14.3%;加入稀土提高了耐热钢的抗高温氧化性,含稀土耐热钢在1200℃时仍具有抗氧化能力。
The rare earth heat-resistant steels with the different contents of rare earths were obtained by smelting the rare earths with the target composition. The hot tensile tests were carried out on the Gleeble-3800 thermal simulator in the temperature range of 850 ~ 1050 ℃. The resistance furnace was used at 1100 ℃, 1150 ℃, 1200 ℃ under the cycle of oxidation test. The results show that the addition of the proper amount of rare earth increases the thermoplasticity of the heat-resisting steel. The reduction of area of 0.06% of the tested steel with rare earth is 14.3% more than that of the untreated steel. The addition of rare earth increases the high temperature oxidation resistance of the heat-resisting steel , With rare earth heat-resistant steel still has antioxidant capacity at 1200 ℃.