1472
As summarized s 3after heat treatment , the mechanical strength of WAAM-fabricated parts improved significantly , with increase of 4 % , 78 % , 5 % and 17 % being reported for titanium alloy , aluminum alloy , Nickel-based superalloys and intermetallic Ti/Al alloy , respectively .
 material: As; material: s; manufacturing process: heat treatment; machanical property: mechanical strength; material: titanium alloy; material: aluminum alloy; material: Nickel-based superalloys; material: intermetallic; material: alloy
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:
 material: As; material: s; manufacturing process: heat treatment; machanical property: mechanical strength; material: titanium alloy; material: aluminum alloy; material: Nickel-based superalloys; material: intermetallic; material: alloy