Formation of nano-dispersed Cu particles during aging of a Fe-Cu alloy and dislocation effect

Lili Zhang, Hongxiang Jiang, Jiuzhou Zhao*

Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

DOI: 10.5185/amlett.2019.2119

Publication Date (Web): Jan 10, 2019

E-mail: jzzhao@imr.ac.cn

Abstract

The microstructure evolution in a Fe-Cu alloy with/without pre-deformation during the aging treatment is investigated numerically. The results demonstrate that although the Cu precipitates first nucleate on dislocations, the summit of the nucleation rate occurs in the matrix. Most of Cu particles situate in the matrix immediately after the nucleation. The preferential dissolution of Cu precipitates in the matrix occurs during the Ostwald repining stage, and the vast majority of the residual particles situate on dislocations in an overaged alloy.

Keywords

Fe-Cu alloy, aging, dislocation, precipitation, modeling.

Current Issue

Intelligent healthcare for future medicine


Review of nanoscale layered transition metal chalcogenide superconductors


Evaluation of NSAIDs antioxidant activity on lipid peroxidation in splenocyte membranes


Morphological, structural, thermal and degradation properties of polylactic acid-waxy maize starch nanocrystals based nanocomposites prepared by melt processing


Influence of surfactant on the patterning behavior of nanosilver within polyacrylamide nanogels


Cell study of the biomimetic modifications on a CoCrMo alloy for biomedical applications


SPIONs and curcumin co-encapsulated mixed micelles based nanoformulation for biomedical applications


Fabrication of Y2O3 coatings by cold-spray


Triclinic LiVPO4F/C cathode for aqueous rechargeable lithium-ion batteries


PRAP-CVD: Up-scalable process for the deposition of PEDOT thin films


Effect of storage time, plasticizer formulation and extrusion parameters on the performance of thermoplastic starch films


Effect of silver nanoparticles on the ammonia gas sensing behavior in diphenylamine based conjugated polymer


Study the possibility of using sisal fibres in building applications


Upcoming Congress

Knowledge Experience at Sea TM