Newly observed prismatic Mg2Sn laths in a Mg–Sn–Zn–Mn alloy
Newly observed prismatic Mg2Sn laths in a Mg–Sn–Zn–Mn alloy
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DOI：
10.1007/s10853-013-7570-8
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发表时间：
2013-07
影响因子：
4.5
通讯作者：
Z.-Z. Shi-Z.;W. Zhang
中科院分区：
文献类型：
--
作者：
Z.-Z. Shi-Z.;W. Zhang
在Mg-Sn-Zn-Mn合金中，板条状Mg 2Sn析出物的惯习面平行于Mg基体的棱柱面。β-Mg 2Sn析出相与α-Mg基体的取向关系为[0 1 1]β//[0 1 −1 0]α和（0 1 −1）β偏离（0 0 0 1）α 0.36 ° ~ 1.2 0 °，其中偏离角最大为0.39 °。虽然OR值不同，板条总是表现出四个侧面轴承固定的关系，在倒易空间中的g向量。其主侧面与基体基面的夹角为4.3° ~ 14.3°。
Lath-shaped Mg2Sn precipitates with their habit planes parallel to the prismatic planes of the Mg matrix are characterized in a Mg–Sn–Zn–Mn alloy. The orientation relationships (ORs) between these β-Mg2Sn precipitates and α-Mg matrix are [0 1 1]β//[0 1 −1 0]αand (0 1 −1)βdeviating 0.36° to 1.20° from (0 0 0 1)α, in which the deviation angle of 0.39° is most frequently observed. Although the ORs vary, the laths always exhibit four side facets bearing fixed relationships withgvectors in reciprocal space. Their major side facets incline to the basal plane of Mg matrix from 4.3° to 14.3°.