In situ transformation from P phase to phase in rhenium-containing single-crystal superalloy during thermal exposure

被引：11

作者：

Gao, Shuang ^{[1
]}

Liu, Zhi-Quan ^{[1
]}

Cui, Jingping ^{[1
]}

Zhou, Yizhou ^{[1
]}

Jin, Tao ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2017年 / 97卷 / 05期

关键词：

Phase transformations; TEM; superalloys; topologically close-packed (TCP) phases; NICKEL-BASE SUPERALLOYS; EFFECTIVE IONIC-RADII; NI-BASED SUPERALLOYS; CLOSE-PACKED PHASES; MU-PHASE; PRECIPITATION BEHAVIOR; CREEP-RUPTURE; MICROSTRUCTURE; RUTHENIUM; CO7MO6;

D O I：

10.1080/09500839.2017.1311427

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An in situ phase transformation from P to in a rhenium-containing superalloy during high-temperature exposure has been investigated by transmission electron microscopy. The orientation relationship between the phases is found as (1-12) // (100)(P) and [241] // [011](P). An atomic model of the /P interface was built to reveal a perfectly coherent interface with lattice misfits of only 0.421 and 1.098%. Considering the small lattice distortions and the similar elemental composition of the phases, it is concluded that the phase transformation from P to is favourable.

引用

页码：188 / 196

页数：9

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