Structure and thermal decomposition of a nanocrystalline mechanically alloyed supersaturated Cu–Ta solid solution
Structure and thermal decomposition of a nanocrystalline mechanically alloyed supersaturated Cu–Ta solid solution
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纳米晶机械合金化过饱和Cu-Ta固溶体的结构和热分解
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
L. Kecskes
中科院分区：
文献类型：
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作者：
T. Rojhirunsakool;K. Darling;M. Tschopp;G. P. Purja Pun;Y. Mishin;R. Banerjee;L. Kecskes
机械合金化Cu-10at.%中亚稳Cu-Ta固溶体的形成用原子探针层析技术研究了钽合金及其退火分解过程。在退火过程中，经研磨的富Cu合金经历相分离; Ta原子扩散出Cu晶格以形成Ta簇和颗粒沿着晶界和在Cu晶粒内。讨论了Ta团簇的作用和固溶体的性质作为这些合金的潜在强化机制。
The formation of a metastable Cu–Ta solid solution in a mechanically alloyed Cu–10 at.%Ta alloy and its subsequent decomposition during annealing was investigated by atom probe tomography. During annealing, the as-milled Cu-rich alloy undergoes phase separation; Ta atoms diffuse out of the Cu lattice to form Ta clusters and particles along grain boundaries and within the Cu grains. The role of the Ta clusters and the nature of the solid solution as a potential strengthening mechanism for these alloys are discussed.