979
The formation of deleterious phases along a particular composition path can cause significant cracking during the AM build process that makes the composition path unviable to produce these FGMs , but it is challenging to predict which phases will be present in aB-built additively manufactured parts by analyzing only equilibrium phase relations .
 concept or principle: composition; concept or principle: cracking; manufacturing process: AM; concept or principle: process; concept or principle: composition; material: be; manufacturing process: additively manufactured; concept or principle: equilibrium
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: composition; concept or principle: cracking; manufacturing process: AM; concept or principle: process; concept or principle: composition; material: be; manufacturing process: additively manufactured; concept or principle: equilibrium