695
After the optimization of processing conditions , Xu produced Ti6Al4V with comparable or better mechanical properties than forged Ti6Al4V .
 concept or principle: optimization; material: Ti6Al4V; concept or principle: mechanical properties; material: Ti6Al4V
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: 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:
 concept or principle: optimization; material: Ti6Al4V; concept or principle: mechanical properties; material: Ti6Al4V