ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The effects of martensitic transformation on the coaxing behavior were studied inaustenitic stainless steels. The materials used were austenitic stainless steels, type 304 and 316.Conventional fatigue tests and stress-incremental fatigue tests were performed using specimenssubjected to several tensile prestrains from 5% to 60%. Under conventional tests, the fatiguestrengths of both steels increased with increasing prestrain. Under stress-incremental tests, 304 steelshowed a marked coaxing effect, where the failure stress significantly increased irrespective ofprestrain level. On the other hand, the coaxing effect in 316 steel decreased with increasingprestrain up to 15%, where the failure stresses were nearly the same. Above this prestrain level, thecoaxing effect increased with increasing prestrain. In 304 steel, the coaxing effect is primarilydominated by work hardening at low prestrains, while the effect of strain-induced martensitictransformation increases with increasing prestrain. The coaxing effect in 316 steel is dominated byboth work hardening and strain aging at low prestrains, but strain-induced martensitictransformation could play a significant role at high prestrains
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.385-387.505.pdf
Permalink