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The influence of the HIP process parameters on the density and microstructure of IN718 SLM components is investigated by means of micro X-ray computed tomography and scanning electron microscopy .
 HIP, parameters, density, microstructure, IN718, components, X-ray computed tomography, scanning electron microscopy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 HIP, parameters, density, microstructure, IN718, components, X-ray computed tomography, scanning electron microscopy