ISSN:
1662-8985
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
The effects of five single and three mixed corrosive environments on the fatigue crackgrowth and residual strength of steel 30CrMnSiNi2A were experimentally studied. The crackgrowth rates in corrosive environments, obtained by using Paris equation, were compared withcrack growth rate in lab air. The results showed that the interactions of aggressive environmentswith fatigue loads caused the accelerations of fatigue crack growth rates in steel 30CrMnSiNi2A.But the effects of various environments on the fatigue crack growth rate are different. Among theenvironments the most detrimental one was oil-box zone, followed by cookroom&washroom, tankseeper, 3.5%NaCl, moist air, high altitude and dried air. Also, the test data showed the less effect ofvarious corrosive environments on critical crack length, that is, no direct infection of corrosive environmentson residual strength capability dominated by fracture toughness
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.261.pdf
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