5579
High dislocation density and not grain size effect of the ultra-fine cellular structure , imparted high strength to 316L .
 dislocation density, grain size, cellular structure, strength
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:
 dislocation density, grain size, cellular structure, strength