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. The development of binary Mg-Ca alloys for use as biodegradable materials within bone [J]. Biomaterials, 2007, 29: 1329-1344. [14] LEE C D, KANG C S, SHIN K S. Effect of galvanic corrosion between precipitate......
of the LPG powder are easily miscible, and a weak connection is formed between the groups. Further, it is difficult to rapidly crystallize and precipitate the LPG powder, and it exhibits a good thermal......
]. For example, secondary phases which are not present in the wrought material may be present in the rapid solidification, a non-uniform precipitate distribution may occur in precipitation-strengthened alloys......
be produced in a matrix precipitate through solution quenching. The solid solution effect of Mg2Si phase and quenching effect can be enhanced by controlling the exit temperature between 520 °C and 550......
[11], it mostly precipitates as discrete nearly-pure Si particles with irregular shapes and weak faceted interface within the matrix [12,13]. At low concentrations, Si particles mostly precipitate......
, which suggests the precipitated phases are Mg(Zn,Cu,Al)2 phases. After hot extrusion, the dendritic Mg(Zn,Cu,Al)2 phases dissolve into the matrix, and then precipitate, generating a large number......
. The δ-Al4FeSi2 phase starts to precipitate at approximately 1000 °C while the β phase is formed by the peritectic reaction of the Liquid + δ-Al4FeSi2→β-Al5FeSi+Si at ~850 °C [27]. The δ phase having......
of the substrate. The other type was embedded in the substrate and was enveloped by the MgF2 film; therefore, it could not react with the solution. MgF2 film near the precipitate was loose, and cracks were even......
solution and precipitate strengthening, have been explored to further improve the strength of HEAs [1,2]. Substitutional solid solution strengthening in metals is usually considered to arise from the lattice......
;Cu-3.0Ni-0.72Si合金在600 ℃时效过程中的初生相((a), (b))和粗化相((c), (d))的原子探针层析技术分析(图中垂直的虚线显示对应的等浓度面的位置)[34] Fig. 19 Atom probe analysis showing tomography and composition of nascent precipitate ((a), (b)) and coarse precipitate ((c), (d)) (Vertical dashed lines show positions of concentration surfaces)[34] 图20 Cu-3.0Ni-0.72Si合金中析出相粗化过程示意图[34] Fig. 20 Schematic diagram showing coarsening of precipitates......
