3537
A rapid drop in ductility occurred at flow rate 5 L/min , because independently-nucleated spinel accelerated inclusion coalescence in the melt pool .
 ductility, flow rate, spinel, inclusion, melt pool
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:
 ductility, flow rate, spinel, inclusion, melt pool