dislocation free造句

• The grainboundary might absorb dislocations emitted from the crack tip , and emitted dislocations into neighbor grain , and them leaving behind a dislocation free zone in the front of a grainboundary , this kind of dislocation free zone
  首次发现黄铜裂尖前方形变孪晶，微裂纹在各个孪晶中形核、扩展，然后相互连接，使裂纹呈z字形扩展。
• 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。