A diffusion-multiple approach for mapping phase diagrams, hardness, and elastic modulus
A diffusion-multiple approach for mapping phase diagrams, hardness, and elastic modulus
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DOI：
10.1007/bf02700985
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发表时间：
2002-07-01
期刊：
影响因子：
--
通讯作者：
Brewer, LN
中科院分区：
文献类型：
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作者：
Zhao, JC;Jackson, MR;Brewer, LN
本文旨在说明的权力的扩散多重方法在有效的映射的相图和材料性能，多组分合金系统，显示出许多三元相图可以从一个单一的扩散多重映射。扩散曲线还允许评估扩散系数。此外，在扩散倍数中产生的组成变化允许作为组成和相的函数的硬度和弹性模量的有效映射。将给出目前用于高温传感器的贵金属系统的例子。对于这些系统，与加热各种合金、制备样品和测量性能相比，多重扩散方法还可以节省大量成本。这种方法使用几种微量分析技术，如电子探针微量分析，电子背散射衍射，和仪器化纳米压痕。
This paper seeks to illustrate the power of a diffusion-multiple approach in efficient mapping of phase diagrams and materials properties,for multicomponent alloy systems, showing that many ternary phase diagrams can be mapped from a single diffusion multiple. The diffusion profiles also allow evaluation of diffusion coefficients. Moreover, the composition variations created in the diffusion multiple allow efficient mapping of hardness and elastic modulus as a function of composition and phases. Examples will be given for precious metal systems currently used in high-temperature sensors. For these systems, the diffusion-multiple approach also produces a tremendous cost saving compared to making heats of various alloys, preparing samples, and measuring properties. This approach uses several microanalytical techniques, such as electron probe microanalysis, electron backscatter diffraction, and instrumented nanoindentation.