研究了超快速退火对一种冷轧变形量为94.2%的Nb+Ti--IF钢的微观组织和织构的影响。结果表明: 超快速退火(升温速度为300℃/s)提高了钢的再结晶完成温度, 整个再结晶退火可在短至0.41 s内完成。与普通退火(升温速度为20℃/s)后钢的再结晶组织相比, 超快速退火处理后晶粒平均尺寸由12.98 μm细化到10.12 μm, 晶粒长大速度由~3 μm/s提高到~23 μm/s, 且再结晶晶粒内存在大量缠结位错。在极短时间内, 超快速退火再结晶织构仍以均匀、锋锐的{111}//ND有利深冲性能的γ织构为主, 且避免了其它α织构的生成, 有利于使退火板具有良好的成形性能。
The effect of ultra–short annealing process on microstructural and textural evolutions associated with an Nb+Ti–IF steel sheet with cold reduction of 94.2% was investigated. The results show that the well–recrystallized samples have been obtained in several seconds during the ultra short annealing cycle with higher heating rate up to 300℃/s. In the fully recrystallized condition, the finer grain size and the higher growth velocity, 10.12 μm and ∼23 μm/s, respectively, can be found in an ultra–short annealing cycle than that in the conventional annealing with heating rate of 20℃/s, 12.98 μm and ∼3 μm/s, respectively, while also amounts of dislocations in recrystal grain have been observed. The characteristic more homogeneous {111} deep drawing fiber of cold rolled IF steels and other fiber texture nearby α skeleton absent, which is potential for high strength steel with deep drawing, were observed in an annealing treatment as short as 0.41 s.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] | |
| [10] | |
| [11] | |
| [12] | |
| [13] | |
| [14] | |
| [15] | |
| [16] | |
| [17] | |
| [18] | |
| [19] | |
| [20] | |
| [21] | |
| [22] | |
| [23] | |
| [24] | |
| [25] | |
| [26] | |
| [27] | |
| [28] | |
| [29] | |
| [30] | |
| [31] | |
| [32] | |
| [33] | |
| [34] | |
| [35] | |
| [36] | |
| [37] | |
| [38] | |
| [39] | |
| [40] | |
| [41] | |
| [42] | |
| [43] | |
| [44] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%