Abstract
X-ray diffraction has many applications in analyzing structure of crystal material, identifying chemical composition, determining phase percentage and analyzing stress. This paper presents a new method to determine the phase percentage of triple-phase hard alloy using the X-ray diffraction, based on the assumption that the measured phase diffraction energy is proportional to the phase volume in the material. Since then proposed to improve the process for determining the percentage of triple-phase materials by X-ray diffraction. This method can also be applied for multi-phase materials.