The M-A units in granular bainite and granular structure are not the cause of embrittlement.
粒状贝氏体及粒状组织中的M-A岛不是该钢焊接热影响区过热区脆化的原因。
The result show that the microstructure formed after thermal cycle was mainly lath bainite and granular bainite in CGHAZ .
结果表明：在不同的焊接热循环条件下，焊接粗晶区组织主要是板条贝氏体和粒状贝氏体。
With large welding heat input, more upper Bainite and granular Bainite form, which is benefit to improve the property of HAZ.
采用大的线能量焊接，形成较多的上贝氏体和粒状贝氏体组织，对改善接头性能有利。
The results show that polygonal ferrite, granular bainite and larger amount of stabilized retained austenite can be obtained after hot rolling.
结果表明，热轧后能够获得多边形铁素体、粒状贝氏体和大量稳定的残留奥氏体组织。
The results indicate that the microstructure of specimen is mainly lathe bainite, granular bainite, quasi-polygonal ferrite and acicular ferrite.
结果表明，该低碳贝氏体钢的微观组织主要为板条贝氏体、粒状贝氏体、准多边形铁素体及针状铁素体的复合组织。
It is proved that the so-called granular bainite microstructure is nothing else but the structural characteristic at a certain stage of this evolution.
论证了所谓粒状贝氏体组织实际上是这种演化过程的阶段性组织特征。
On the other hand, within 'small island 'of granular bainite retained austenite transforms into martensite and coarser Fe_3C (M_3C) -carbide precipitates.
另一方面，“小岛”中的残余奥氏体转变成马氏体而岛中原有马氏体则逐步分解折出M_3C。
The content of granular bainite is decreased with the decrease of carbon and carbide forming elements, and the impact toughness of CGHAZ of the steel is increased at the same time.
通过降低钢中的碳及碳化物形成元素的含量可减少CGHAZ中粒状贝氏体的数量，从而提高钢的CGHAZ的冲击韧性。
Moreover, the microstructure of X100 pipeline steel mainly consists of massive granular bainite, and some fine and dispersive M/A islands with a few lath bainite in the matrix also.
X100管线钢的显微组织以粒状贝氏体为主，同时弥散分布着大量细小的M/A岛和少量的板条贝氏体；
The microstructure of the steel transforms from ferrite plus granular bainite, lath bainite plus lath martensite and then to lath martensite successively with the increasing of cooling rate;
随着冷却速率的增加，实验钢的显微组织由铁素体+粒状贝氏体逐步转变为板条贝氏体+板条马氏体及板条马氏体组织；
It shows that even granular bainite structure can be obtained in the condition of air quenching. The temper resistance is better and comprehensive mechanical properties of the steel are higher.
试验结果表明，该钢在空冷条件下可获得均匀的粒状贝氏体组织，具有良好的耐回火性和较高综合力学性能。
The welding metal can form granular bainite structure and mechanics property of welding joints is consistent with the parent metal. The result shows that this welding electrode can meet the need.
通过分析焊接接头组织和力学性能，表明与辙叉母材的性能基本一致，能够满足使用要求。
The welding metal can form granular bainite structure and mechanics property of welding joints is consistent with the parent metal. The result shows that this welding electrode can meet the need.
通过分析焊接接头组织和力学性能，表明与辙叉母材的性能基本一致，能够满足使用要求。
应用推荐