4589
Both Ti-6Al-4V and Inconel 718 had similar fusion zone shape and size and were equally susceptible to deformation and warping , although Ti-6Al-4V was relatively less vulnerable to delamination due to its higher yield strength .
 material: Ti-6Al-4V; material: Inconel 718; concept or principle: fusion zone; concept or principle: deformation; concept or principle: warping; material: Ti-6Al-4V; concept or principle: delamination; machanical property: yield strength
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Ti-6Al-4V, Inconel 718, fusion zone, deformation, warping, Ti-6Al-4V, delamination, yield strength 
Answer:
 material: Ti-6Al-4V; material: Inconel 718; concept or principle: fusion zone; concept or principle: deformation; concept or principle: warping; material: Ti-6Al-4V; concept or principle: delamination; machanical property: yield strength