1406
The microstructure of WAAM fabricated Inconel 718 parts generally consists of large columnar grains with interdendritic boundaries delineated by small Laves phase precipitates and MC carbides .
 concept or principle: microstructure; manufacturing process: WAAM; concept or principle: fabricated; machanical property: columnar grains; engineering feature: boundaries; concept or principle: Laves phase; material: MC; material: carbides
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: 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:
 concept or principle: microstructure; manufacturing process: WAAM; concept or principle: fabricated; machanical property: columnar grains; engineering feature: boundaries; concept or principle: Laves phase; material: MC; material: carbides