Study on influence of strain ratio on low cycle fatigue behavior of directionally solidified superalloy DZ125

Jin Long Liu; Duo Qi Shi; Xiao Guang Yang; Yu Bao; Jing Ke Wang

Study on influence of strain ratio on low cycle fatigue behavior of directionally solidified superalloy DZ125

Jin Long Liu^*
, Duo Qi Shi
, Xiao Guang Yang
, Yu Bao
, Jing Ke Wang

^*此作品的通讯作者

能源与动力工程学院

Beihang University

科研成果: 期刊稿件 › 文章 › 同行评审

3 引用（Scopus）

摘要

The low cycle fatigue (LCF) behaviors of a directionally solidified nickel-based superalloy DZ125 at 850°C and 980°C were investigated. The effect of strain ratio (R=-1, 0) on the stress-strain hysteresis loop, cyclic mean stress evolution and fatigue lives was analyzed. The results indicated that the scatter of fatigue life for R=-1 and R=0 was small enough to be neglected at 850°C and 980°C. The fracture cross section was observed using scan electronic microscopic (SEM) to analyze the crack initiation mechanism.

源语言	英语
页（从-至）	47-50+60
期刊	Journal of Materials Engineering
期	12
出版状态	已出版 - 12月 2010

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title = "Study on influence of strain ratio on low cycle fatigue behavior of directionally solidified superalloy DZ125",

abstract = "The low cycle fatigue (LCF) behaviors of a directionally solidified nickel-based superalloy DZ125 at 850°C and 980°C were investigated. The effect of strain ratio (R=-1, 0) on the stress-strain hysteresis loop, cyclic mean stress evolution and fatigue lives was analyzed. The results indicated that the scatter of fatigue life for R=-1 and R=0 was small enough to be neglected at 850°C and 980°C. The fracture cross section was observed using scan electronic microscopic (SEM) to analyze the crack initiation mechanism.",

keywords = "Directionally solidified, Low cycle fatigue, Strain ratio, Superalloy",

author = "Liu, \{Jin Long\} and Shi, \{Duo Qi\} and Yang, \{Xiao Guang\} and Yu Bao and Wang, \{Jing Ke\}",

year = "2010",

month = dec,

language = "英语",

pages = "47--50+60",

journal = "Journal of Materials Engineering",

issn = "1001-4381",

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number = "12",

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TY - JOUR

T1 - Study on influence of strain ratio on low cycle fatigue behavior of directionally solidified superalloy DZ125

AU - Liu, Jin Long

AU - Shi, Duo Qi

AU - Yang, Xiao Guang

AU - Bao, Yu

AU - Wang, Jing Ke

PY - 2010/12

Y1 - 2010/12

N2 - The low cycle fatigue (LCF) behaviors of a directionally solidified nickel-based superalloy DZ125 at 850°C and 980°C were investigated. The effect of strain ratio (R=-1, 0) on the stress-strain hysteresis loop, cyclic mean stress evolution and fatigue lives was analyzed. The results indicated that the scatter of fatigue life for R=-1 and R=0 was small enough to be neglected at 850°C and 980°C. The fracture cross section was observed using scan electronic microscopic (SEM) to analyze the crack initiation mechanism.

AB - The low cycle fatigue (LCF) behaviors of a directionally solidified nickel-based superalloy DZ125 at 850°C and 980°C were investigated. The effect of strain ratio (R=-1, 0) on the stress-strain hysteresis loop, cyclic mean stress evolution and fatigue lives was analyzed. The results indicated that the scatter of fatigue life for R=-1 and R=0 was small enough to be neglected at 850°C and 980°C. The fracture cross section was observed using scan electronic microscopic (SEM) to analyze the crack initiation mechanism.

KW - Directionally solidified

KW - Low cycle fatigue

KW - Strain ratio

KW - Superalloy

UR - https://www.scopus.com/pages/publications/78651346737

M3 - 文章

AN - SCOPUS:78651346737

SN - 1001-4381

SP - 47-50+60

JO - Journal of Materials Engineering

JF - Journal of Materials Engineering

IS - 12

ER -

Study on influence of strain ratio on low cycle fatigue behavior of directionally solidified superalloy DZ125

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