728x90 반응형 QUIZ API 5711 QUIZ) API 571 1. __________ is a change in the microstructure of certain carbon steels and 0.5 Mo steels after long term operation in the 800º F to 1100º F range. A. Graphitization B. Softening C. Temper Embrittlement D. Creep 2. What structure is 304 stainless steel? A. Martensitic B. Austenitic C. Duplex D. Ferritic 3. _________ is the result of cyclic stress caused by variations in temperature. A. Creep B... 2020. 6. 17. 이전 1 다음 728x90 반응형