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This study focused on additive manufacturing ( AM ) of the Al–Fe binary alloy samples with a near-eutectic composition of 2.5 mass % Fe using the laser powder bed fusion ( LPBF ) process .
 additive manufacturing, AM, binary, alloy, composition, Fe, laser powder bed fusion, LPBF, process
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:
 additive manufacturing, AM, binary, alloy, composition, Fe, laser powder bed fusion, LPBF, process