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Effect of δ Phase on Mechanical Properties of GH4169 Alloy at Room Temperature
Alternative TitleEffect of δ Phase on Mechanical Properties of GH4169 Alloy at Room Temperature
Ye Nengyong1; Cheng Ming1; Zhang Shihong2; Song Hongwu2; Zhou Hongwei1; Wang Pingbo1
2015
Source PublicationJournal of Iron and Steel Research, International
ISSN1006-706X
Volume22Issue:8Pages:752-756
AbstractTensile tests of GH4169 alloy were performed at room temperature. Different fractions, distributions and shapes of δ phase was prepared by aging treated at 880 °C, 930 °C and 980 °C for 5 h or 10 h. The effect of δ phase on the mechanical properties of GH4169 alloy was investigated. The results show that 0.2% yield strength and ultimate tensile strength of GH4169 alloy increase by 61 MPa and 78 MPa respectively when the fraction of δ phase increases from 2.20% to 5.21%. Then, the ultimate tensile strength remains at 1 012 MPa even when the fraction of δ phase reaches 7.56%. The fraction effect of δ phase on the strength improvement of GH4169 alloy is more significant than morphology, and the critical fraction value is 5.21%. In addition, the elongation decreases by 14.1% when the fraction of δ phase increases from 2.20% to 7.56%. Excessive needle or short rod shaped δ phase is responsible for the reduction of elongation.
Other AbstractTensile tests of GH4169 alloy were performed at room temperature. Different fractions, distributions and shapes of δ phase was prepared by aging treated at 880 °C, 930 °C and 980 °C for 5 h or 10 h. The effect of δ phase on the mechanical properties of GH4169 alloy was investigated. The results show that 0.2% yield strength and ultimate tensile strength of GH4169 alloy increase by 61 MPa and 78 MPa respectively when the fraction of δ phase increases from 2.20% to 5.21%. Then, the ultimate tensile strength remains at 1 012 MPa even when the fraction of δ phase reaches 7.56%. The fraction effect of δ phase on the strength improvement of GH4169 alloy is more significant than morphology, and the critical fraction value is 5.21%. In addition, the elongation decreases by 14.1% when the fraction of δ phase increases from 2.20% to 7.56%. Excessive needle or short rod shaped δ phase is responsible for the reduction of elongation.
KeywordGH4169 alloy δ phase fraction mechanical property morphology
Indexed ByCSCD
Language英语
CSCD IDCSCD:5492069
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/144311
Collection中国科学院金属研究所
Affiliation1.兰州理工大学
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Ye Nengyong,Cheng Ming,Zhang Shihong,et al. Effect of δ Phase on Mechanical Properties of GH4169 Alloy at Room Temperature[J]. Journal of Iron and Steel Research, International,2015,22(8):752-756.
APA Ye Nengyong,Cheng Ming,Zhang Shihong,Song Hongwu,Zhou Hongwei,&Wang Pingbo.(2015).Effect of δ Phase on Mechanical Properties of GH4169 Alloy at Room Temperature.Journal of Iron and Steel Research, International,22(8),752-756.
MLA Ye Nengyong,et al."Effect of δ Phase on Mechanical Properties of GH4169 Alloy at Room Temperature".Journal of Iron and Steel Research, International 22.8(2015):752-756.
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