Morphological characterization and distribution of autocatalytic-grown Ni4Ti3 precipitates in a Ni-Ti single crystal

被引：11

作者：

Cao, S. ^{[1
,2
]}

Ke, C. B. ^{[1
]}

Zhang, X. P. ^{[1
]}

Schryvers, D. ^{[2
]}

机构：

[1] S China Univ Technol, Dept Metall Mat Sci & Engn, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 577卷

基金：

中国国家自然科学基金; 日本学术振兴会;

关键词：

Ni-Ti; Ni4Ti3; precipitates; FIB/SEM; 3D reconstruction; Phase-field simulation; MARTENSITIC-TRANSFORMATION; NUCLEATION;

D O I：

10.1016/j.jallcom.2012.02.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The 3D size, morphology and distribution of autocatalytic-grown Ni4Ti3 precipitates in a Ni51Ti49 single crystal were characterized via a FIB/SEM Slice-and-View procedure and phase-field simulation. Important parameters on size and shape of the precipitates were measured. The pair distribution function and the minimum distance between two precipitates from different variants were calculated to describe the 3D distribution of the autocatalytic-grown Ni4Ti3 precipitates in single crystal Ni-Ti, with a comparison to the polycrystalline Ni50.8Ti49.2 alloy. Phase-field simulation was conducted to study the nucleation behavior of precipitates in the single crystal Ni-Ti. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：S215 / S218

页数：4

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