发射位错 meaning in Chinese
emissary dislocations
Examples
- It was found that many dislocations were emitted from the crack tip during the early stage of crack propagation and were driven out of the crack tip area , and them piled up inversely . a closed dislocation free zone ( dfz ) was formed between the crack tip and the pile - up dislocations . keeping displacement constant , the dislocations were still emitted from the crack tip for a while
本文首先系统地研究了工业纯金属( fe ， al ， ti和mg )断裂的微观过程，发现所研究的工业纯金属断裂过程裂尖均首先发射位错，并离开裂尖向前运动、在裂尖留下无位错区，位错反塞积在五位错区的端部，反塞积位错群一般呈封闭状包围无位错区。 - Many dislocations were emitted from the grainboundary in the front of crack and were driven out of grain boundary area , leaving dislocation free zone in the front of grainboundary . a concept of grainboundary dislocation free zone is proposed . the deformation in the front of crack tip in magnesium was single slip , which resulted in the thinning in the area of crack tip
首次发现裂尖前方晶界对裂尖发射的位错有排斥作用，裂尖前方的晶界可以向晶界两侧晶粒发射位错，位错从晶界发出后迅速离开晶界向前运动，形成晶界无位错区，首次提出晶界无位错区的概念。 - The width of stacking fault increased as partial dislocations move forward . in the fracture of 18 - 8 stainless steel , many dislocations were emitted from the crack tip during the early stage of crack propagation and moved forward , and then a dfz was formed between the crack tip and the pile - up dislocations . the dfz is an elastic zone
不锈钢断裂时，裂尖首先发射位错，并离开裂尖向前运动，裂尖前方留下无位错区，位错反塞积在无位错区的端部，无位错区是应变很高的异常弹性区，随着裂纹的扩展，无位错区逐渐发生晶体碎化和转动。 - Keeping displacement constant , the length of dfz decreased . the less the lattice resistance is , the longer the dfz is . during the crack propagation , the pile - up dislocations may move forward in the previous direction or in another direction which caused shape of dfz changed . the dislocations emitted from the crack tip might pile up in the dfz and can be served as dislocation source in the successive loading
在裂纹扩展过程，反塞积位错群发生变化，可以沿原来方向继续向前运动，也可能改变运动方向使无位错区的形状发生变化，后来发射出的位错可以在原五位错区中塞积，并可作为位错源在后续的加载中发射位错。