Stacking faults in face-centred cubic metals and alloys
Stacking faults in face-centred cubic metals and alloys
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DOI：
10.1080/14786435708242709
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发表时间：
1957-05
影响因子：
1.6
通讯作者：
R. Smallman;K. H. Westmacott
中科院分区：
文献类型：
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作者：
R. Smallman;K. H. Westmacott
通过冷加工在几种面心立方金属和合金的（111）面上引入了层错，并根据Debye-Scherrer谱的变化得到了层错几率α的估计。在合金化过程中，断裂概率增加，从铜的300分之一的平面增加到一些含有锌、铝、锡或锗的高溶质含量合金的25分之一的平面。中子辐照（5×1019 n.v.t.）而“淬入”空位对断层参数影响不大。降低变形温度会增加断层的可能性，但在铜中，断层在室温下几个小时后就会“退火”。谱线展宽分析表明，合金化和降低变形温度均使位错密度增加。提出断裂作用可能是由分离的半位错之间的区域引起的。堆垛层错的带状物是由扩展位错和…
Abstract Stacking faults on the (111) planes of several face-centred cubic metals and alloys have been introduced by cold work, and estimates of the stacking fault probability α, have been obtained from changes produced in the Debye-Scherrer spectrum. The faulting probability increases on alloying, from one plane in 300 in copper, to one plane in 25 for some high solute content alloys containing zinc, aluminium, tin or germanium. Both neutron irradiation (5×1019 n.v.t.) and ‘quenched-in’ vacancies have little significant effect on the faulting parameter. Lowering the temperature of deformation increases the faulting probability but in copper the faults ‘anneal-out’ at room temperature after several hours. Line broadening analysis shows that the dislocation density is increased on alloying and also by lowering the deformation temperature. It is suggested that the faulting may be accounted for by the regions between separated half dislocation. Ribbons of stacking faults as given by extended dislocations and...