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In this paper , weldability studies for laser welding of Zr52.5Ti5Al10Ni14.6Cu17.9 amorphous foils onto a Ti-6Al-4V ( Ti 6-4 ) or Zr 702 substrate are conducted .
 machanical property: weldability; manufacturing process: laser welding; material: Ti-6Al-4V; material: Ti; material: Zr; material: substrate
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:
 machanical property: weldability; manufacturing process: laser welding; material: Ti-6Al-4V; material: Ti; material: Zr; material: substrate