Identification of processing parameters for Fe–15Cr–2.2Mo–15Ni–0.3Ti austenitic stainless steel using processing maps
Source: Materials Science and Technology, Volume 17, Number 5, May 2001 , pp. 545-550(6)
Publisher: Maney Publishing
Abstract:The processing parameters for hot working of Fe–15Cr–2.2Mo–15Ni–0.3Ti austenitic stainless steel (alloy D9) are identified using processing maps developed on the basis of the dynamic materials model and hot compression data in the temperature range 850–1250°C and strain rate range 0.001–100 s-1. The efficiency of power dissipation increased with increase in temperature and decrease in strain rate. Dynamically recrystallised microstructures resulted when the efficiency of power dissipation was in the range 27–37%, i.e. in the temperature range 1050–1250°C and strain rate range 0.001–0.5 s-1. Flow localisation occurred in the regions of instability at temperatures lower than 1000°C and at higher strain rates. The dynamic recrystallisation regime observed in this alloy is compared with other austenitic stainless steels, namely, AISI type 304L and 316L.
Document Type: Regular Paper
Affiliations: 1: The Materials Development Group, Indira Ghandi Centre for Atomic Research, Kalpakkam 603 102, Tamil Nadu, India 2: The Department of Metallurgy, Indian Institute of Science, Bangalore 560 012, Karnataka, India 3: The IIT, Mumbai, Saket, 11 Sapru Marg, Lucknow, Uttar Pradesh, India
Publication date: 2001-05-01
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