4630
The present study investigated for the first time the feasibility of producing by Selective Laser Melting ( SLM ) a NiCrAlY bond coat material directly onto an IN625 substrate itself produced by SLM .
 feasibility, Selective Laser Melting, SLM, bond coat, substrate, SLM
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:
 feasibility, Selective Laser Melting, SLM, bond coat, substrate, SLM