Acta Metallurgica Sinica (English Letters) ›› 2011, Vol. 24 ›› Issue (5): 343-350.DOI: 10.11890/1006-7191-115-343
高飞1,刘振宇2,刘海涛3,王国栋4
Fei GAO, Zhenyu LIU, Haitao LIU, Guodong WANG
摘要: The influence of finish rolling temperature on microstructure and texture evolution in Nb and B micro-alloyed ultra purified Cr17 ferritic stainless steels were investigated. The hot rolled bands were produced by conventional rolling process and the finish rolling at relatively low temperatures or “warm rolling”, which were annealed, cold rolled to 1.0 mm thick sheets, and annealed in the same processes. The microstructure was observed by optical microscopy, scanning electron microscopy and transmission electron microscopy, and X-ray diffraction was used to characterize texture evolution processes. The results showed that as compared to conventional hot rolling process, the warm rolling had led to the refined and homogeneous microstructure and uniform recrystallization texture along γ-fiber in final sheets, indicating that the finish rolling at relatively low temperatures can be the effective way to significantly improve the formability of final sheets.
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