http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Amanov, Auezhan,Karimbaev, Ruslan,Maleki, Erfan,Unal, Okan,Pyun, Young-Sik,Amanov, Tileubay Elsevier 2019 Surface & coatings technology Vol.358 No.-
<P><B>Abstract</B></P> <P>In this study, the fatigue performance of AISI 304 subjected to shot peening (SP), ultrasonic nanocrystal surface modification (UNSM) and the combination of SP + UNSM processes was systematically assessed by rotary bending fatigue (RBF) tester at different stress levels. The purpose of combining SP and UNSM processes is to find out whether SP following UNSM process can further improve the fatigue life of AISI 304 in comparison with the SP and UNSM processes alone. Interestingly, the fatigue strength of AISI 304 was deteriorated by the combination of SP + UNSM processes in comparison with the UNSM process alone, but the combination of SP + UNSM processes demonstrated a higher fatigue strength in comparison with the SP process alone.</P> <P><B>Highlights</B></P> <P> <UL> <LI> SP, UNSM and SP + UNSM processes were applied to AISI 304. </LI> <LI> UNSM process exhibited the highest surface hardness. </LI> <LI> UNSM process induced the highest compressive residual stress. </LI> <LI> SP + UNSM process exhibited better results than SP process. </LI> <LI> UNSM process demonstrated the longest fatigue life than SP and SP + UNSM processes. </LI> </UL> </P>