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The microstructure of the weld interface between the metal tapes consisted of fine , equiaxed grains resulting from recrystallization , which is driven by simple shear deformation along the ultrasonically vibrating direction of the tape surface .
 concept or principle: microstructure; engineering feature: weld; concept or principle: interface; material: metal; concept or principle: equiaxed grains; concept or principle: recrystallization; manufacturing process: simple; concept or principle: deformation; concept or principle: surface
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: microstructure; engineering feature: weld; concept or principle: interface; material: metal; concept or principle: equiaxed grains; concept or principle: recrystallization; manufacturing process: simple; concept or principle: deformation; concept or principle: surface