dislocation n. 1.【醫(yī)學(xué)】脫位,脫臼;離位,轉(zhuǎn)位,位移。 2.【地質(zhì)學(xué);地理學(xué)】斷層,斷錯;【物理學(xué)】位錯。 3.混亂,打亂。 a disastrous economic dislocation 災(zāi)難性的經(jīng)濟混亂。
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 首次發(fā)現(xiàn)黃銅裂尖前方形變孿晶,微裂紋在各個孿晶中形核、擴展,然后相互連接,使裂紋呈z字形擴展。
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 本文首先系統(tǒng)地研究了工業(yè)純金屬( fe , al , ti和mg )斷裂的微觀過程,發(fā)現(xiàn)所研究的工業(yè)純金屬斷裂過程裂尖均首先發(fā)射位錯,并離開裂尖向前運動、在裂尖留下無位錯區(qū),位錯反塞積在五位錯區(qū)的端部,反塞積位錯群一般呈封閉狀包圍無位錯區(qū)。
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 首次發(fā)現(xiàn)裂尖前方晶界對裂尖發(fā)射的位錯有排斥作用,裂尖前方的晶界可以向晶界兩側(cè)晶粒發(fā)射位錯,位錯從晶界發(fā)出后迅速離開晶界向前運動,形成晶界無位錯區(qū),首次提出晶界無位錯區(qū)的概念。