ISSN:
1662-9752
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:
According to accommodate-state and big bulk 18-8 type austenitic stainless steel has theweakness of coarse-grained and low strength. Optical microscopy，electron microscopy and X-raydiffraction were used to analyze microstructure and grain size of austenitic stainless steel specimensafter deformation heat treatment. The paper investigates the influence of recrystallization annealingon the ultra-fine structure of cold deformation austenitic stainless steel. The results show thataustenitic stainless steel can produce deformation-induced martensite by cold rolling deformation，and that the content of martensite increases with deformation degree. During the annealing, ultra-finegrains can be obtained by the reversal transformation-induced martensite(M′→γ ). After severe colddeformation, inside austenitic grains imported austenitic-martensite(γ /M) phase boundaries shallserve to add a great deal of forming nucleus location for recrystallization, to enhance forming nucleusratio and refine grain. 1Cr18Ni9Ti austenitic stainless steel by severe cold deformation andrecrystallization annealing can acquire ultra-fine grains
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.551-552.421.pdf
