Precipitates and Lüders Elongation in Ferritic Stainless Steels Stabilized with Ti and V

Fei Gao; Wei Na Zhang; Zhi Bo Zhang; Zhen Yu Liu; Guo Dong Wang

doi:10.4028/www.scientific.net/AMR.194-196.16

Paper Titles

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Precipitates and Lüders Elongation in Ferritic Stainless Steels Stabilized with Ti and V

Abstract:

The influence of finish rolling temperature on the precipitates and Lüders elongation in ultra purified ferritic stainless steels stabilized with Ti and V has been investigated, in which the hot rolled bands were produced by conventional rolling process and the finish rolling at relatively low temperatures. It was shown that finish rolling at relatively low temperatures promoted the formation of a large number of fine MC precipitates, which were denser in dispersion and finer in size than those formed in conventional rolling process by strain-induced precipitation, and consequently scavenging of interstitial atoms in solid solution, indicating that the finish rolling at relatively low temperatures can be the effective way to significantly reduced Lüders elongation for the final sheets. These results have been confirmed by the internal friction measurements.