9390
In this research work , a short review on additive manufacturing of Ti-6Al-4V alloys has been investigated to define its mechanical and metallurgical properties in both aB-built and heat treated conditions .
 research, additive manufacturing, Ti-6Al-4V alloys, mechanical, metallurgical, heat
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:
 research, additive manufacturing, Ti-6Al-4V alloys, mechanical, metallurgical, heat