Influence of Deformation Heat Treatment on the Ultra-Fine Structure of Austenitic Stainless Steel

Abstract:

Article Preview

According to accommodate-state and big bulk 18-8 type austenitic stainless steel has the weakness of coarse-grained and low strength. Optical microscopy,electron microscopy and X-ray diffraction were used to analyze microstructure and grain size of austenitic stainless steel specimens after deformation heat treatment. The paper investigates the influence of recrystallization annealing on the ultra-fine structure of cold deformation austenitic stainless steel. The results show that austenitic 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-fine grains can be obtained by the reversal transformation-induced martensite(M′→ γ ). After severe cold deformation, inside austenitic grains imported austenitic-martensite(γ /M) phase boundaries shall serve to add a great deal of forming nucleus location for recrystallization, to enhance forming nucleus ratio and refine grain. 1Cr18Ni9Ti austenitic stainless steel by severe cold deformation and recrystallization annealing can acquire ultra-fine grains.

Info:

Periodical:

Materials Science Forum (Volumes 551-552)

Edited by:

K.F. Zhang

Pages:

421-425

Citation:

M. Wang and H. Z. Guo, "Influence of Deformation Heat Treatment on the Ultra-Fine Structure of Austenitic Stainless Steel", Materials Science Forum, Vols. 551-552, pp. 421-425, 2007

Online since:

July 2007

Export:

Price:

$38.00

[1] N. Orhan, T.I. Khan and M. Eroglu. Diffusion Bonding of a Microduplex Stainless Steel to Ti-6Al-4V. Sciripta Materialia. Vol. 45(2001), p.441.

DOI: https://doi.org/10.1016/s1359-6462(01)01041-7

[2] M. Ghosh, S. Chatterjee. Diffusion Bonded Transition Joints of Titanium to Stainless Steel with Improved Properties. Materials Science and Engineering A. Vol 358(2003), p.152.

DOI: https://doi.org/10.1016/s0921-5093(03)00298-3

[3] T. Maaihara. The Superplastic Stainless Steel. Metal Materials of Abroad, Vol. 5(1991), p.9.

[4] ZHANG Dongfeng (interprete). Ausform Austenitic Stainless Steel Obtaining Ultra-Fine Structure. Heat Treatment of Metals of Abroad, , Vol. 15 (1994), p.27.

[5] CHEN He, JING Qin,WU Haoquan. Influence of Heat Treatment on the Grains of Cold Worked Austenitic Stainless Steel. Physics Testing, Vol. 4(1995), p.8.

[6] XIAO Jimei. Metallurgical Problems of Stainless Steel. Beijing: Metallurgy Industry Publish House, (1983).

[7] YANG Gang, LIU Zhengdong, GONG Zhihua, et al. Microstructure Refining Technique of Austenitic Stainless Steel. Journal of Iron and Steel Research, Vol. 18(2006), p.32.

Fetching data from Crossref.
This may take some time to load.