5439
The SLM-manufactured Al-Si-Mg-Ti/TiC material exhibited fine equiaxed-shaped α ( Al ) grains with nanoscale Si4Ti5 phases and Mg segregation along the grain boundaries .
 material, Al, grains, Mg, grain boundaries
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:
 material, Al, grains, Mg, grain boundaries