Heterogeneous nucleation in hypermonotectic aluminum alloys
Heterogeneous nucleation in hypermonotectic aluminum alloys
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DOI：
10.1088/1757-899x/27/1/012005
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发表时间：
2012-01
期刊：
影响因子：
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通讯作者：
M. Köhler;L. Ratke;I. Kaban;W. Hoyer
中科院分区：
文献类型：
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作者：
M. Köhler;L. Ratke;I. Kaban;W. Hoyer
为了解决偏晶体系中液-液分解的非均相成核问题，建立了简单的铸造实验。对不同孕育剂的Al-Pb合金进行了凝固处理，并用扫描电子显微镜和X射线显微断层扫描对凝固后的组织进行了分析。铅析出物分布的显著变化表明有可能触发形核。
Simple casting experiments were set up to solve the question, if heterogeneous nucleation of the liquid-liquid decomposition in monotectic systems is possible. Al–Pb alloys with different inoculants were solidified, and the resulting microstructure was analysed by SEM and X-ray microtomography. Pronounced changes in the distribution of the lead precipitations indicate that it is possible to trigger the nucleation.