5366
Their influence on the microstructure , micro-segregation , precipitate formation , and micro-hardness variations of LPBF alloy 718 were investigated .
 microstructure, micro-segregation, precipitate, variations, LPBF, alloy
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:
 microstructure, micro-segregation, precipitate, variations, LPBF, alloy