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三、高温高压下介质对材料性能的影响 在高温高压下工作的压力容器,因蠕变及金相组织变化使机械性能不断恶化。假如同时有介质的腐蚀作用,将大大加速这个进程。在石油、化学工业中,这个问题是更为严重的。在这种条件下工作的压力容器及其部件,假如只注意到高温对材料的影响,不重视甚至忽视了介质在高温高压下对材料的严重影响,将必然带来严重后果。
Third, the medium under high temperature and high pressure on the material properties of pressure vessels working under high temperature and pressure, due to creep and microstructure changes so that the deteriorating mechanical properties. If at the same time there is corrosion of the media, will greatly accelerate the process. In the oil and chemical industry, this problem is even more serious. Pressure vessels and their components operating under such conditions, if only pay attention to the impact of high temperature on the material, do not pay attention or even ignore the medium under the high temperature and pressure on the material seriously, will inevitably have serious consequences.