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高温X射线衍射是研究物质加热分析、相变化和原子热振动等的重要工具。本实验就是利用高温X射线衍射来探讨低镍时效钢的相变动力学关系。 一、实验方法 1.实验条件 高温X射线衍射法的主要实验装置为GX-3B型X射线衍射仪,加热装置由加热炉、真空系统、测温系统和控制系统所组成。为避免试样在高温时氧化,加热炉先抽真空,通惰性气体后升温。用铂-铑铂热电偶和UJ36型电位差计测温,实验时温度误差范围为±
High temperature X-ray diffraction is an important tool for studying material heating analysis, phase change and atomic thermal vibration. This experiment is the use of high temperature X-ray diffraction to study the phase transition kinetics of low nickel aged steel. First, the experimental method 1. Experimental conditions High-temperature X-ray diffraction method for the main experimental device GX-3B X-ray diffractometer, the heating device from the furnace, vacuum system, temperature measurement system and control system. In order to avoid the sample at high temperature oxidation, heating furnace first vacuum, through inert gas warming. Platinum - rhodium platinum thermocouple and UJ36-type potentiometer temperature measurement, the experimental temperature error range of ±