The Kinetics of Natural Ageing in 6000 Alloys - a Multi-method Approach

The Kinetics of Natural Ageing in 6000 Alloys - a Multi-method Approach
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6000 种合金的自然时效动力学 - 多种方法

DOI：
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发表时间：
2010
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通讯作者：
N. Wanderka
N. Wanderka
中科院分区：
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文献类型：
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作者：
J. Banhart;Z. Liang;N. Wanderka

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通过六种不同的技术研究了 Al-Mg-Si 合金的室温“自然”时效：电阻率、热分析、硬度测量、正电子寿命、3D 原子探针和小角中子散射，以便识别不同的聚类阶段，并研究自然时效对后续“人工”时效的负面影响何时开始显现。各种测量表明，自然时效比自然时效复杂得多。 预期的，至少可以区分四个不同的阶段。
Room temperature ‘natural’ ageing in Al-Mg-Si alloys was studied by means of six different techniques: electrical resistivity, thermoanalysis, hardness measurement, lifetime of positrons, 3D atom probe and small-angle neutron scattering in order to identify different clustering stages and to study when the negative effect of natural ageing on subsequent ‘artificial’ ageing sets in. The various measurements show that natural ageing is much more complex than anticipated and at least four different stages can be distinguished.