6754
A tensile test was conducted in vacuum at 650 °C and 2.10−4 s−1 , and the results indicated that damage processes were not affected by oxidation when the experiments were carried out in air .
 tensile test, damage, oxidation
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 tensile test, damage, oxidation