1461
Bimetal material combinations , such as Al/Cu , Al/Ti and Al/Fe , are quite susceptible to cracking and delamination when fabricated with the WAAM process .
 material: Bimetal material combinations; material: as; material: Al/Cu; material: Al/Ti; material: Al/Fe; concept or principle: cracking; concept or principle: delamination; concept or principle: fabricated; manufacturing process: WAAM; concept or principle: process
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: Bimetal material combinations; material: as; material: Al/Cu; material: Al/Ti; material: Al/Fe; concept or principle: cracking; concept or principle: delamination; concept or principle: fabricated; manufacturing process: WAAM; concept or principle: process