采用热等静压(HIP)技术制备纯钒,利用材料试验机、OM、SEM、TEM和TGA等测试纯钒的力学性能并观察其拉伸断口形貌、进行热重分析.结果表明:热等静压温度在1250 ℃以上可以实现全致密化;随温度的升高,抗拉强度、屈服强度均先降低后增加,延伸率及断面收缩率呈相反趋势变化,在1250 ℃综合性能最佳,抗拉强度、屈服强度分别为701,634 MPa,延伸率为22.4%;断口形貌表现出滑断、微孔聚集等不同的断裂方式,不同温度制备的纯钒试样晶粒大小没有显著变化,均观察到板条马氏体组织存在; 氧化行为符合抛物线规律,活化能为118 kJ/mol.
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