存在由加载速率变化引起的韧脆断裂转变。
And there exists a ductile to brittle fracture transition caused by loading rate.
结果表明：中间纯铝层的塑性变形行为明显不同于块体纯金属，其厚度尺寸对材料的韧脆转变具有显著影响。
The results show that the plastic deformation is obviously different from that of bulk metal and the thickness plays a key role on the ductile to brittle transition in al interlayer.
对试验钢筋的应变时效敏感性、韧脆转变温度、可焊性、强度与韧性的配合进行了系统的测试和研究。
The sensibility of strain aging, ductile-brittle transit temperature, weldability, and the coordination between strength and ductility of reinforced steel bars were systematically investigated.
结果表明，本钢X70管线钢具有高强度、高抗动态撕裂能力、高低温冲击韧性以及低韧脆转变温度。
The results indicate that the X70 pipeline steel with acicular ferrite microstructure has high strength, high toughness, low transition temperature and high dynamic tear-resistance.
研究了正火处理对FAS390Q桥壳钢显微组织、强度、冲击韧性和韧脆转变温度的影响。
The effect of normalizing on microstructure, strength, impact toughness and ductile-brittle transition temperature of FAS390Q axle housing steel was studied.
当弹性体的含量高到一定程度，分散相的粒间距达到临界值，则发生明显的脆韧转变。
The sharp brittle-tough transition is observed at a critical interparticle distance when the content of elastomer is relatively high.
对于脆性较大的UPR，只有在采用加载速度较慢的断裂韧性来表征其韧性时，方能观察到这一脆韧转变现象。
For the UPR with greater brittleness, the brittle-tough transition was observed only when the toughness of the resin was characterized by fracture toughness at a slower loading rate.
为了明确自激振动的产生机理，建立力学模型，必须研究韧脆转变机制。
In order to further investigate the mechanism and build model of self-excited vibration, it is necessary to study the mechanism of DBT.
分析表明，冰致平台自激振动发生在冰的韧脆转变的冰速范围内。
Previous studies have demonstrated that self-excited vibration occurred during the ice speed at which ice fails in ductile-to-brittle transition (DBT) range.
研究了PP/EPDM /纳米弹性体粒子（ENP）三元共混体系的脆韧转变行为。
The brittle-ductile transition of PP/EPDM/Elastomeric nano-meter particle (ENP) was studied.
结果表明，该共混体系中界面应力的应变诱导致结晶作用及其所引起的基体中伸展链晶体网络结构的形成是该材料实现脆韧转变的重要原因。
The results show that the interfacial stress produced from the shrinkage of the matrix in the composites injection molding process can strain induced crystallization of th.
研究了磷含量和晶粒尺寸对低碳钢的屈服强度、 冲击韧性和韧脆转变温度的影响。
The influence of phosphorus and grain size on yield strength and Charp V-notch toughness of low carbon steels have been investigated.
有魏氏组织的试样较呈等轴铁素体的试样有更高的冲击韧性和更低的韧脆转变温度。
The specimens with Widmanstatten structure have higher impact strength and lower ductile-brittle transition temperature than those with equiaxial granular ferrite structure.
当裂尖出现纤维裂纹后，韧脆转变机理是：由二相粒子决定的解理断裂应力转变成由晶粒尺寸决定的解理断裂应力。同缺口试样具有相同的临界事件。
The mechanism of ductile-brittle transition was considered as the result of the transition of stress as determined by the second phase particle to that as determined by the ferrite grain.
当裂尖出现纤维裂纹后，韧脆转变机理是：由二相粒子决定的解理断裂应力转变成由晶粒尺寸决定的解理断裂应力。同缺口试样具有相同的临界事件。
The mechanism of ductile-brittle transition was considered as the result of the transition of stress as determined by the second phase particle to that as determined by the ferrite grain.
应用推荐