TY - JOUR
T1 - Ridging-free ferritic stainless steel produced through recrystallization of lath martensite
AU - Tsuchiyama, Toshihiro
AU - Hirota, Ryouji
AU - Fukunaga, Kazuhiro
AU - Takaki, Setsuo
PY - 2005
Y1 - 2005
N2 - Ridging phenomenon was successfully suppressed in a ferritic stainless steel by controlling microstructure through recrystallization of lath martensitic structure. Fe-12Cr-1Ni alloy was quenched after the solution treatment in an austenite single phase region to obtain lath martensitic structure. Cold rolling was performed to the quenched materials up to 80% reduction in thickness before the annealing for recrystallization. With increasing the reduction by cold rolling, the recrystallization was promoted and ferrite grain size was decreased to 20 μm after recrystallization in the 80% pre-cold-rolled material. A weak 〈111〉//ND recrystallization texture was formed by the cold rolling, but no grain colonies existed in the microstructure. As a result, the materials produced through the recrystallization of lath martensite did not cause ridging during tensile deformation, although an orange peel appeared when the grain size was not refined enough.
AB - Ridging phenomenon was successfully suppressed in a ferritic stainless steel by controlling microstructure through recrystallization of lath martensitic structure. Fe-12Cr-1Ni alloy was quenched after the solution treatment in an austenite single phase region to obtain lath martensitic structure. Cold rolling was performed to the quenched materials up to 80% reduction in thickness before the annealing for recrystallization. With increasing the reduction by cold rolling, the recrystallization was promoted and ferrite grain size was decreased to 20 μm after recrystallization in the 80% pre-cold-rolled material. A weak 〈111〉//ND recrystallization texture was formed by the cold rolling, but no grain colonies existed in the microstructure. As a result, the materials produced through the recrystallization of lath martensite did not cause ridging during tensile deformation, although an orange peel appeared when the grain size was not refined enough.
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U2 - 10.2355/isijinternational.45.923
DO - 10.2355/isijinternational.45.923
M3 - Article
AN - SCOPUS:23844474163
VL - 45
SP - 923
EP - 929
JO - Transactions of the Iron and Steel Institute of Japan
JF - Transactions of the Iron and Steel Institute of Japan
SN - 0915-1559
IS - 6
ER -