Effects of heat shocking on microstructure and creep performance of a directionally solidified Ni3Al base alloy

Yuejun Sun; Yanling Pei; Shengkai Gong; Huibin Xu

Effects of heat shocking on microstructure and creep performance of a directionally solidified Ni₃Al base alloy

Yuejun Sun^*
, Yanling Pei
, Shengkai Gong
, Huibin Xu

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

Abstract

Infrared rapid heating system was used to study the effects of heat shocking on microstructure and creep performance of a directionally solidified Ni₃Al base alloy. After heat shocking for 200, 400, 600 and 800 cyc at 1100°C, the sample's creep performances at 980°C, 218 MPa were tested. Observation of the microstructure indicated that γ′ precipitates coarsened after heat shocking, at the same time, the MC carbides at boundary and interdendritic decomposed to M₆C and γ′. Creep life of the alloy decreased largely after heat shocking due to coarsening of γ′ precipitate and reducing of γ′ volume.

Original language	English
Pages (from-to)	547-550
Number of pages	4
Journal	Jinshu Xuebao/Acta Metallurgica Sinica
Volume	44
Issue number	5
State	Published - May 2008

Keywords

Carbide
Coarseing
Creep life
Heat shocking
Microstructure
NiAl base alloy

Cite this

@article{ace01921e69e474585f0f52dd67c33e6,

title = "Effects of heat shocking on microstructure and creep performance of a directionally solidified Ni3Al base alloy",

abstract = "Infrared rapid heating system was used to study the effects of heat shocking on microstructure and creep performance of a directionally solidified Ni3Al base alloy. After heat shocking for 200, 400, 600 and 800 cyc at 1100°C, the sample's creep performances at 980°C, 218 MPa were tested. Observation of the microstructure indicated that γ′ precipitates coarsened after heat shocking, at the same time, the MC carbides at boundary and interdendritic decomposed to M6C and γ′. Creep life of the alloy decreased largely after heat shocking due to coarsening of γ′ precipitate and reducing of γ′ volume.",

keywords = "Carbide, Coarseing, Creep life, Heat shocking, Microstructure, NiAl base alloy",

author = "Yuejun Sun and Yanling Pei and Shengkai Gong and Huibin Xu",

year = "2008",

month = may,

language = "英语",

volume = "44",

pages = "547--550",

journal = "Jinshu Xuebao/Acta Metallurgica Sinica",

issn = "0412-1961",

publisher = "Chinese Academy of Sciences",

number = "5",

}

TY - JOUR

T1 - Effects of heat shocking on microstructure and creep performance of a directionally solidified Ni3Al base alloy

AU - Sun, Yuejun

AU - Pei, Yanling

AU - Gong, Shengkai

AU - Xu, Huibin

PY - 2008/5

Y1 - 2008/5

N2 - Infrared rapid heating system was used to study the effects of heat shocking on microstructure and creep performance of a directionally solidified Ni3Al base alloy. After heat shocking for 200, 400, 600 and 800 cyc at 1100°C, the sample's creep performances at 980°C, 218 MPa were tested. Observation of the microstructure indicated that γ′ precipitates coarsened after heat shocking, at the same time, the MC carbides at boundary and interdendritic decomposed to M6C and γ′. Creep life of the alloy decreased largely after heat shocking due to coarsening of γ′ precipitate and reducing of γ′ volume.

AB - Infrared rapid heating system was used to study the effects of heat shocking on microstructure and creep performance of a directionally solidified Ni3Al base alloy. After heat shocking for 200, 400, 600 and 800 cyc at 1100°C, the sample's creep performances at 980°C, 218 MPa were tested. Observation of the microstructure indicated that γ′ precipitates coarsened after heat shocking, at the same time, the MC carbides at boundary and interdendritic decomposed to M6C and γ′. Creep life of the alloy decreased largely after heat shocking due to coarsening of γ′ precipitate and reducing of γ′ volume.

KW - Carbide

KW - Coarseing

KW - Creep life

KW - Heat shocking

KW - Microstructure

KW - NiAl base alloy

UR - https://www.scopus.com/pages/publications/45449085706

M3 - 文章

AN - SCOPUS:45449085706

SN - 0412-1961

VL - 44

SP - 547

EP - 550

JO - Jinshu Xuebao/Acta Metallurgica Sinica

JF - Jinshu Xuebao/Acta Metallurgica Sinica

IS - 5

ER -

Effects of heat shocking on microstructure and creep performance of a directionally solidified Ni₃Al base alloy

Abstract

Keywords

Other files and links

Fingerprint

Cite this