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In the present study , we found remarkable microstructural inhomogeneity along build direction in the EBM-built Co-based alloy , owing to the competitive grain growth and subsequent isothermal γ-fcc → ε-hcp phase transformation , which affects the corresponding tensile properties significantly .
 microstructural, build direction, alloy, grain growth, isothermal, phase, tensile properties
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:
 microstructural, build direction, alloy, grain growth, isothermal, phase, tensile properties