Abnormal growth of columnar grains and formation of Σ3 grain boundaries in non-oriented electrical steels
Abnormal growth of columnar grains and formation of Σ3 grain boundaries in non-oriented electrical steels
复制标题
无取向电工钢中柱状晶的异常长大和δ3晶界的形成
DOI：
10.1016/j.matlet.2020.127671
复制
发表时间：
2020-06
影响因子：
3
通讯作者：
ChunfaYao
中科院分区：
文献类型：
--
作者：
Li Xie;Mingtao He;Jiangtao Wang;Jian Wang;Yalin Lu;Wenting Xu;ChunfaYao
利用电子背散射衍射（EBSD）技术研究了塑性变形和退火过程中柱状晶的异常生长行为和晶界的形成。在氢还原气氛中，在储能和晶界迁移率的驱动下，晶粒取向度较高的细小等轴晶异常长大，形成粗大的奥氏体柱状晶。在γ → α相变过程中，由于组织遗传，形成了具有高GOS值和非{1 1 1}织构的粗大柱状晶。此外，通常获得细长的铁素体柱状或岛状晶粒，其GOS值为1.3 GBs和低GOS值，其形成机制与Kurdjumov-Sachs（K-S）关系严格相关，该关系是在氢气还原气氛中由GB迁移率和表面效应驱动的变体选择过程中诱导的。
The remarkably abnormal growth behavior of columnar grains and the formation of Σ3 grain boundaries (GBs) were studied via plastic deformation and annealing based on an electron backscattering diffraction (EBSD) investigation. Driven by the stored energy and GB mobility, coarse austenite columnar grains were formed by the abnormal growth of fine equiaxed grains with higher grain orientation spread (GOS) values in the reducing atmosphere of hydrogen. Moreover, extraordinarily coarse columnar grains with high GOS values and non-{1 1 1} texture were formed by microstructure inheritance during γ → α transformation. In addition, slender ferritic columnar or island grains with Σ3 GBs and low GOS values were generally obtained, and the formation mechanism was strictly associated with the Kurdjumov-Sachs (K-S) relationship, which was induced during variant selection driven by the GB mobility and surface effect in the reducing atmosphere of hydrogen.
登录
查看更多内容
影响因子：
2.3
作者：
Louwen Zhang;P. Yang;W. Mao
通讯作者：
Louwen Zhang;P. Yang;W. Mao
影响因子：
2.7
作者：
Li Xie;P. Yang;Ning Zhang;C. Zong;D. Xia;W. Mao
通讯作者：
Li Xie;P. Yang;Ning Zhang;C. Zong;D. Xia;W. Mao
采用致密薄带连铸工艺增加再结晶织构来制造高磁导率无取向电工钢
影响因子：
2.7
作者：
Liu, Hai-Tao;Schneider, J.;Wang, Guo-Dong
通讯作者：
Wang, Guo-Dong
影响因子：
3.6
作者：
B. Straumal;S. Dobatkin;A. O. Rodin;S. Protasova;A. Mazilkin;D. Goll;B. Baretzky
通讯作者：
B. Straumal;S. Dobatkin;A. O. Rodin;S. Protasova;A. Mazilkin;D. Goll;B. Baretzky
影响因子：
4.5
作者：
B. Straumal;O. Kogtenkova;A. Straumal;Yu. O. Kuchyeyev;B. Baretzky
通讯作者：
B. Straumal;O. Kogtenkova;A. Straumal;Yu. O. Kuchyeyev;B. Baretzky