Effect of Ru on Deformation Mechanism and Microstructure Evolution of Single-Crystal Superalloys under Medium-Temperature and High-Stress Creep

被引：3

作者：

Emokpaire, Stephen Okhiai ^{[1
,2
]}

Wang, Nan ^{[1
,3
]}

Liu, Jide ^{[1
]}

Zhu, Chongwei ^{[1
]}

Wang, Xinguang ^{[1
]}

Li, Jinguo ^{[1
]}

Zhou, Yizhou ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China

[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China

[3] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110016, Peoples R China

来源：

MATERIALS | 2023年 / 16卷 / 07期

关键词：

creep deformation; deformation mechanism; ' phase; single-crystal superalloys; NICKEL-BASE SUPERALLOY; GAMMA/GAMMA' INTERFACE; CYCLE FATIGUE; TCP PHASE; PRECIPITATION; BEHAVIOR; TENSILE; RE; MICROSEGREGATION; RUTHENIUM;

D O I：

10.3390/ma16072732

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：

In this work, the effect of the Ru element on the ?'-phase evolution and deformation mechanism in the fourth-generation Ni-based single-crystal superalloy was investigated. Results show that the Ru element alters the distribution coefficient of other elements in the alloy to produce reverse partitioning behavior, which leads to a difference in microstructure between 0Ru and 3Ru. The addition of Ru triggered the incubation period before the beginning of the primary creep stage, which depends on the creep temperature and stress during creep deformation. TEM results revealed that Ru addition inhibits the slip system {111}< 112 > at medium-temperature (760-1050 C-?) and high-stress (270-810 MPa) creep, which brings a considerably low creep rate and high creep life to the Ru-containing alloy.

引用

页数：14

共 39 条

[1] Influence of solidification history on precipitation behavior of TCP phase in a completely heat-treated Ni3Al based single crystal superalloy during thermal exposure [J].

Ai, Cheng ;

Li, Shusuo ;

Zhao, Xinbao ;

Zhou, Jian ;

Guo, Yajie ;

Sun, Zhiping ;

Song, Xuding ;

Gong, Shengkai .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 722 :740-745

[2] High-Cycle Fatigue of Single Crystals of Nickel-Base Superalloy VZhM4 [J].

Belyaev M.S. ;

Petrushin N.V. .

Inorganic Materials: Applied Research, 2018, 9 (04) :655-662

[3] The segregation of elements in high-refractory-content single-crystal nickel-based superalloys [J].

Caldwell, EC ;

Fela, FJ ;

Fuchs, GE .

JOM, 2004, 56 (09) :44-48

[4] IMPROVEMENT OF CREEP STRENGTH IN A NICKEL-BASE SINGLE-CRYSTAL SUPER-ALLOY BY HEAT-TREATMENT [J].

CARON, P ;

KHAN, T .

MATERIALS SCIENCE AND ENGINEERING, 1983, 61 (02) :173-184

[5] Elemental partitioning in Ru-containing nickel-base single crystal superalloys [J].

Carroll, L. J. ;

Feng, Q. ;

Mansfield, J. F. ;

Pollock, T. M. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 457 (1-2) :292-299

[6] In situ investigation on the precipitation of topologically close-packed phase in Ni-base single crystal superalloy [J].

Gao, Shuang ;

Zhou, Yizhou ;

Li, Cai-Fu ;

Cui, Jingping ;

Liu, Zhi-Quan ;

Jin, Tao .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 610 :589-593

[7] Influence of Ru on Solidification Behavior, Microstructure and Hardness of Re-free Ni-based Equiaxed Superalloys with High Cr Content [J].

Guan, Yingshuang ;

Liu, Enze ;

Guan, Xiurong ;

Zheng, Zhi .

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2016, 32 (03) :271-281

[8]

Guedou J.Y., 2014, P MATEC C C GIENS FR, VVolume 14

[9]

Guedou J.Y., 2014, P MATEC WEB C GIENS, V14

[10]

Hino T, 2000, SUPERALLOYS 2000, P729

← 1 2 3 4 →