公开(公告)号：US10144982B2

公开(公告)日：2018-12-04

申请号：US14399515

申请日：2012-08-17

申请人： Tae Kyung Lee ,  Chong Soo Lee ,  Seok Weon Song ,  Jae Hyung Kim ,  Kaneaki Tsuzaki ,  Motomichi Koyama

发明人： Tae Kyung Lee ,  Chong Soo Lee ,  Seok Weon Song ,  Jae Hyung Kim ,  Kaneaki Tsuzaki ,  Motomichi Koyama

IPC分类号： C21D8/00 ,  C22C38/04 ,  C21D6/00 ,  C21D8/02 ,  C21D8/06

摘要： Provided is a Fe—Mn—C-based twinning-induced plasticity (TWIP) steel which includes 13 wt % to 24 wt % of manganese (Mn), 0.4 wt % to 1.2 wt % of carbon (C), and iron (Fe) as well as other unavoidable impurities as a remainder, is manufactured by caliber rolling, has a microstructure including elongated grains that are elongated in a rolling direction, and has an average grain size of the elongated grains in a direction perpendicular to the rolling direction of 1 μm or less.

公开(公告)号：US20150114526A1

公开(公告)日：2015-04-30

申请号：US14399515

申请日：2012-08-17

申请人： Tae Kyung Lee ,  Chong Soo Lee ,  Seok Weon Song ,  Jae Hyung Kim ,  Kaneaki Tsuzaki ,  Motomichi Koyama

发明人： Tae Kyung Lee ,  Chong Soo Lee ,  Seok Weon Song ,  Jae Hyung Kim ,  Kaneaki Tsuzaki ,  Motomichi Koyama

IPC分类号： C21D8/00 ,  C21D8/06 ,  C22C38/04 ,  C21D6/00

CPC分类号： C21D8/005 ,  C21D6/005 ,  C21D8/0231 ,  C21D8/0236 ,  C21D8/065 ,  C21D2201/03 ,  C21D2201/05 ,  C21D2211/001 ,  C21D2211/005 ,  C22C38/04

摘要： Provided is a Fe—Mn—C-based twinning-induced plasticity (TWIP) steel which includes 13 wt % to 24 wt % of manganese (Mn), 0.4 wt % to 1.2 wt % of carbon (C), and iron (Fe) as well as other unavoidable impurities as a remainder, is manufactured by caliber rolling, has a microstructure including elongated grains that are elongated in a rolling direction, and has an average grain size of the elongated grains in a direction perpendicular to the rolling direction of 1 μm or less.

摘要翻译： 本发明提供一种Fe-Mn-C系的孪晶诱导塑性（TWIP）钢，其含有13重量％〜24重量％的锰（Mn），0.4重量％〜1.2重量％的碳（C），铁 ）以及作为其余部分的其他不可避免的杂质通过口径轧制制造，具有包括在轧制方向上伸长的细长晶粒的微结构，并且在垂直于轧制方向的方向上具有细长晶粒的平均晶粒尺寸 1μm以下。