Microstructure Evolution of [001] orientation Single Crystal Nickel-Based Superalloy During Compression Creep

被引：0

作者：

Zhang Shu ^{[1
]}

Tian Sugui ^{[1
]}

Liang Fushui ^{[1
]}

Li Anan ^{[1
]}

Li Jingjing ^{[1
]}

机构：

[1] Shenyang Univ Technol, Shenyang 110870, Peoples R China

来源：

TMS2011 SUPPLEMENTAL PROCEEDINGS, VOL 2: MATERIALS FABRICATION, PROPERTIES, CHARACTERIZATION, AND MODELING | 2011年

关键词：

Single crystal nickel-based superalloy; compressive creep; microstructure evolution; FEM analysis; driving force; TENSILE CREEP; MORPHOLOGY; GAMMA; PHASE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During compressive creep, the cubical gamma' phase in [ 001] orientation single crystal nickel-based superalloy is transformed into the rafted structure along the direction parallel to the applied stress axis. By means of the elastic stress-strain finite element method, the von Mises stress distributions of the cubical gamma'/gamma phases are calculated for investigating the regularity of the directional coarsening of gamma' phase. Results show that the stress distribution of the cubical gamma/gamma' phases may be changed by applied compressive stress, and the bigger von Mises stress produced on ( 001) plane of the cubical gamma' phase is thought to be a main reason of occurring the microstructure evolution, and proposing the expression of the driving force for the directional growing of gamma' phase during compressive creep.

引用

页码：427 / 434

页数：8

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