1) intergranular crack
沿晶裂纹
1.
The results show that working for long time under high temperature,the wall of reheater pipe is severely thinned with action of oxidation and erosion on the inside and outside surface,and the material of pipe becomes brittle and the intergranular crack forms.
结果表明,由于长时高温运行,再热器管在内外表面氧化腐蚀作用下,管壁严重减薄,材料组织脆化,形成沿晶裂纹,管子不足以承受管内蒸汽压力,形成脆性开裂爆口。
2.
The intergranular cracks found in transition zone were also analyzed and some advices were put forward.
结果表明,两起事故都是由叶片激光熔覆层中缺陷引起的疲劳断裂,同时还分析了过渡区附近的沿晶裂纹产生原因,并提出了一些建议。
2) delayed crack along the grain boundary
沿晶延迟裂纹
3) intergranular crack
沿晶开裂
1.
The reinforced connector of the down tail tube in hydrogen manufacturing converted furnace was intergranular crack.
制氢转化炉下尾管加强接头发生沿晶开裂,对接头的化学成分、断口形貌、显微组织等进行了检测与分析。
2.
Along with the diversification of components,the propagation form of cracks changes from intergranular crack into transcry.
Ti/Al2O3界面处生成的Ti3Al相以及Ti3Al周围的气孔是热疲劳裂纹的主要萌生和扩展地;随着成分的变化,裂纹的扩展由沿晶开裂转变为穿晶断裂,裂纹扩展的路线并不是直线,在各梯度层间发生了裂纹的偏转。
3.
The reinforced connector of the down tail tube in hydrogen manufacturing converted furnace was intergranular crack.
制氢转化炉下尾管加强接头发生沿晶开裂,对接头的化学成分、断口形貌、显微组织等进行了检测与分析。
5) intergranular cracking
沿晶开裂
1.
The results show that the main reason for the cracking was high temperature intergranular oxidation,with the fracture morphology being a typical intergranular cracking character.
结果表明,造成主蒸汽滤网开裂的主要原因是晶界高温氧化,断口呈典型的沿晶开裂特征。
6) intergranular fracture
沿晶断裂
1.
The results indicated that the fracture toughness reduces and the tendency to intergranular fracture increases with both reducing temperature and raising loading rate,which shows the low temperature effect and high loading rate effect and both of them promot each other.
焊缝金属沿晶脆性断裂是特定的材料因素、结构因素和环境因素共同作用的结果,沿晶脆性断裂倾向决定于晶界协调相邻晶粒塑性变形的能力,在晶界不足以协调其两侧晶粒的变形时便出现沿晶断裂。
2.
The results show that intergranular fracture prevails as quench rates decrease for the alloy with Zr<0.
1%合金随着淬火速率的降低,由穿晶破断和沿晶开裂的混合型断裂逐渐转变成沿晶断裂;其主要原因是淬火速率降低使晶界无沉淀析出带(PFZ)宽化。
3.
It is pointed out that the change of the mode from intergranular fracture to intragranular fracture cannot act as the strengthening mechanism of the ceramic, it is the important reason why the tou ghness of the ceramic cannot be improved significantly.
综述和分析了纳米碳化硅颗粒强化氧化铝基陶瓷材料的强韧化机制,认为由沿晶断裂到穿晶断裂的断裂模式的改变不是使复相陶瓷材料强韧化的机制之一,而恰恰是其韧性得不到显著提高的重要原因,并由此提出了有关复相材料新的设计思路。
补充资料：沿洄
1.亦作"?洄"。 2.顺流而下或逆流而上。 3.引申为徘徊。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条