Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy

Jinhui Du; Xudong Lu; Zhongnan Bi; Tingdong Xu

doi:doi:10.11648/j.ijmsa.20160502.13

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Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy

Jinhui Du, Xudong Lu, Zhongnan Bi, Tingdong Xu

Published in International Journal of Materials Science and Applications (Volume 5, Issue 2)

Received: 24 March 2016 Published: 25 March 2016

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Abstract

IN718 alloy is a precipitation hardened, nickel-based superalloy that is used extensively in the aircraft engine industry. The excellent cyclic fatigue resistance, high tensile strength, fracture toughness and oxidation resistance allow the alloy to be safely used at maximum useful service temperature of about 650ºC. Many researchers improve the alloy's high-temperature strength through adding of P. However, segregation of P at grain boundary can be induced the grain boundary embrittlement, decreased the tension reduction in area. In this paper, intermediate-temperature embrittlement (ITE) for a IN718 alloy has been experimentally studied by elevated-temperature tension tests. International standard ISO 6892-2 (Metallic Materials Tensile Testing) indicates that the variations in temperature of this measurement system have been found to have a larger potential effect on test results, which is a kind of uncertainty contribution not related to test equipment. International standard ISO 6892-2 maintains that strain rate variations can induce the measurement uncertainty of mechanical properties in tensile testing, which will imperil the reliability of tension tests. The measurement uncertainty of reduction in area relative to strain rate, called as strain rate embrittlement (SRE), is first described experimentally for IN718 alloy in this paper. Then the measurement uncertainty is clarified based on microscopic theory of elastic deformation in metals. It is shown that the elastic deformation of tension test induced the segregation of impurities to grain boundaries and the relevant embrittlement which produces the measurement uncertainty of reduction in area.

Published in	International Journal of Materials Science and Applications (Volume 5, Issue 2)
DOI	10.11648/j.ijmsa.20160502.13
Page(s)	49-53
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Elastic Deformation, Non-equilibrium Segregation, IN718 Alloy

References

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APA Style

Jinhui Du, Xudong Lu, Zhongnan Bi, Tingdong Xu. (2016). Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy. International Journal of Materials Science and Applications, 5(2), 49-53. https://doi.org/10.11648/j.ijmsa.20160502.13

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ACS Style

Jinhui Du; Xudong Lu; Zhongnan Bi; Tingdong Xu. Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy. Int. J. Mater. Sci. Appl. 2016, 5(2), 49-53. doi: 10.11648/j.ijmsa.20160502.13

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AMA Style

Jinhui Du, Xudong Lu, Zhongnan Bi, Tingdong Xu. Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy. Int J Mater Sci Appl. 2016;5(2):49-53. doi: 10.11648/j.ijmsa.20160502.13

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@article{10.11648/j.ijmsa.20160502.13,
  author = {Jinhui Du and Xudong Lu and Zhongnan Bi and Tingdong Xu},
  title = {Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy},
  journal = {International Journal of Materials Science and Applications},
  volume = {5},
  number = {2},
  pages = {49-53},
  doi = {10.11648/j.ijmsa.20160502.13},
  url = {https://doi.org/10.11648/j.ijmsa.20160502.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160502.13},
  abstract = {IN718 alloy is a precipitation hardened, nickel-based superalloy that is used extensively in the aircraft engine industry. The excellent cyclic fatigue resistance, high tensile strength, fracture toughness and oxidation resistance allow the alloy to be safely used at maximum useful service temperature of about 650ºC. Many researchers improve the alloy's high-temperature strength through adding of P. However, segregation of P at grain boundary can be induced the grain boundary embrittlement, decreased the tension reduction in area. In this paper, intermediate-temperature embrittlement (ITE) for a IN718 alloy has been experimentally studied by elevated-temperature tension tests. International standard ISO 6892-2 (Metallic Materials Tensile Testing) indicates that the variations in temperature of this measurement system have been found to have a larger potential effect on test results, which is a kind of uncertainty contribution not related to test equipment. International standard ISO 6892-2 maintains that strain rate variations can induce the measurement uncertainty of mechanical properties in tensile testing, which will imperil the reliability of tension tests. The measurement uncertainty of reduction in area relative to strain rate, called as strain rate embrittlement (SRE), is first described experimentally for IN718 alloy in this paper. Then the measurement uncertainty is clarified based on microscopic theory of elastic deformation in metals. It is shown that the elastic deformation of tension test induced the segregation of impurities to grain boundaries and the relevant embrittlement which produces the measurement uncertainty of reduction in area.},
 year = {2016}
}

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TY  - JOUR
T1  - Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy
AU  - Jinhui Du
AU  - Xudong Lu
AU  - Zhongnan Bi
AU  - Tingdong Xu
Y1  - 2016/03/25
PY  - 2016
N1  - https://doi.org/10.11648/j.ijmsa.20160502.13
DO  - 10.11648/j.ijmsa.20160502.13
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 49
EP  - 53
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20160502.13
AB  - IN718 alloy is a precipitation hardened, nickel-based superalloy that is used extensively in the aircraft engine industry. The excellent cyclic fatigue resistance, high tensile strength, fracture toughness and oxidation resistance allow the alloy to be safely used at maximum useful service temperature of about 650ºC. Many researchers improve the alloy's high-temperature strength through adding of P. However, segregation of P at grain boundary can be induced the grain boundary embrittlement, decreased the tension reduction in area. In this paper, intermediate-temperature embrittlement (ITE) for a IN718 alloy has been experimentally studied by elevated-temperature tension tests. International standard ISO 6892-2 (Metallic Materials Tensile Testing) indicates that the variations in temperature of this measurement system have been found to have a larger potential effect on test results, which is a kind of uncertainty contribution not related to test equipment. International standard ISO 6892-2 maintains that strain rate variations can induce the measurement uncertainty of mechanical properties in tensile testing, which will imperil the reliability of tension tests. The measurement uncertainty of reduction in area relative to strain rate, called as strain rate embrittlement (SRE), is first described experimentally for IN718 alloy in this paper. Then the measurement uncertainty is clarified based on microscopic theory of elastic deformation in metals. It is shown that the elastic deformation of tension test induced the segregation of impurities to grain boundaries and the relevant embrittlement which produces the measurement uncertainty of reduction in area.
VL  - 5
IS  - 2
ER  -

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Author Information

Jinhui Du

Beijing Key Laboratory for Advanced High Temperature Materials, China Iron & Steel Research Institute Group, Beijing, China
Xudong Lu

Beijing Key Laboratory for Advanced High Temperature Materials, China Iron & Steel Research Institute Group, Beijing, China
Zhongnan Bi

Beijing Key Laboratory for Advanced High Temperature Materials, China Iron & Steel Research Institute Group, Beijing, China
Tingdong Xu

Beijing Key Laboratory for Advanced High Temperature Materials, China Iron & Steel Research Institute Group, Beijing, China

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Plain Text BibTeX RIS

APA Style

Jinhui Du, Xudong Lu, Zhongnan Bi, Tingdong Xu. (2016). Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy. International Journal of Materials Science and Applications, 5(2), 49-53. https://doi.org/10.11648/j.ijmsa.20160502.13

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ACS Style

Jinhui Du; Xudong Lu; Zhongnan Bi; Tingdong Xu. Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy. Int. J. Mater. Sci. Appl. 2016, 5(2), 49-53. doi: 10.11648/j.ijmsa.20160502.13

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AMA Style

Jinhui Du, Xudong Lu, Zhongnan Bi, Tingdong Xu. Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy. Int J Mater Sci Appl. 2016;5(2):49-53. doi: 10.11648/j.ijmsa.20160502.13

Copy | Download

@article{10.11648/j.ijmsa.20160502.13,
  author = {Jinhui Du and Xudong Lu and Zhongnan Bi and Tingdong Xu},
  title = {Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy},
  journal = {International Journal of Materials Science and Applications},
  volume = {5},
  number = {2},
  pages = {49-53},
  doi = {10.11648/j.ijmsa.20160502.13},
  url = {https://doi.org/10.11648/j.ijmsa.20160502.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20160502.13},
  abstract = {IN718 alloy is a precipitation hardened, nickel-based superalloy that is used extensively in the aircraft engine industry. The excellent cyclic fatigue resistance, high tensile strength, fracture toughness and oxidation resistance allow the alloy to be safely used at maximum useful service temperature of about 650ºC. Many researchers improve the alloy's high-temperature strength through adding of P. However, segregation of P at grain boundary can be induced the grain boundary embrittlement, decreased the tension reduction in area. In this paper, intermediate-temperature embrittlement (ITE) for a IN718 alloy has been experimentally studied by elevated-temperature tension tests. International standard ISO 6892-2 (Metallic Materials Tensile Testing) indicates that the variations in temperature of this measurement system have been found to have a larger potential effect on test results, which is a kind of uncertainty contribution not related to test equipment. International standard ISO 6892-2 maintains that strain rate variations can induce the measurement uncertainty of mechanical properties in tensile testing, which will imperil the reliability of tension tests. The measurement uncertainty of reduction in area relative to strain rate, called as strain rate embrittlement (SRE), is first described experimentally for IN718 alloy in this paper. Then the measurement uncertainty is clarified based on microscopic theory of elastic deformation in metals. It is shown that the elastic deformation of tension test induced the segregation of impurities to grain boundaries and the relevant embrittlement which produces the measurement uncertainty of reduction in area.},
 year = {2016}
}

Copy | Download

TY  - JOUR
T1  - Elastic Deformation Induced Non-equilibrium Segregation of P in IN718 Alloy
AU  - Jinhui Du
AU  - Xudong Lu
AU  - Zhongnan Bi
AU  - Tingdong Xu
Y1  - 2016/03/25
PY  - 2016
N1  - https://doi.org/10.11648/j.ijmsa.20160502.13
DO  - 10.11648/j.ijmsa.20160502.13
T2  - International Journal of Materials Science and Applications
JF  - International Journal of Materials Science and Applications
JO  - International Journal of Materials Science and Applications
SP  - 49
EP  - 53
PB  - Science Publishing Group
SN  - 2327-2643
UR  - https://doi.org/10.11648/j.ijmsa.20160502.13
AB  - IN718 alloy is a precipitation hardened, nickel-based superalloy that is used extensively in the aircraft engine industry. The excellent cyclic fatigue resistance, high tensile strength, fracture toughness and oxidation resistance allow the alloy to be safely used at maximum useful service temperature of about 650ºC. Many researchers improve the alloy's high-temperature strength through adding of P. However, segregation of P at grain boundary can be induced the grain boundary embrittlement, decreased the tension reduction in area. In this paper, intermediate-temperature embrittlement (ITE) for a IN718 alloy has been experimentally studied by elevated-temperature tension tests. International standard ISO 6892-2 (Metallic Materials Tensile Testing) indicates that the variations in temperature of this measurement system have been found to have a larger potential effect on test results, which is a kind of uncertainty contribution not related to test equipment. International standard ISO 6892-2 maintains that strain rate variations can induce the measurement uncertainty of mechanical properties in tensile testing, which will imperil the reliability of tension tests. The measurement uncertainty of reduction in area relative to strain rate, called as strain rate embrittlement (SRE), is first described experimentally for IN718 alloy in this paper. Then the measurement uncertainty is clarified based on microscopic theory of elastic deformation in metals. It is shown that the elastic deformation of tension test induced the segregation of impurities to grain boundaries and the relevant embrittlement which produces the measurement uncertainty of reduction in area.
VL  - 5
IS  - 2
ER  -

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