Comparison of mechanisms of advanced mechanical surface treatments in nickel-based superalloy

Amrinder Gill; Abhishek Telang; S. R. Mannava; Dong Qian; Young Shik Pyoun; Hitoshi Soyama; Vijay K. Vasudevan

doi:10.1016/j.msea.2013.04.021

Comparison of mechanisms of advanced mechanical surface treatments in nickel-based superalloy

Amrinder Gill, Abhishek Telang, S. R. Mannava, Dong Qian, Young Shik Pyoun, Hitoshi Soyama, Vijay K. Vasudevan

ENG - Finemechanics

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

81 Citations (Scopus)

Abstract

Mechanical surface enhancement techniques are used to introduce compressive residual stresses to enhance the fatigue life and corrosion resistance of metallic components. In this study, we compare the effects of three advanced mechanical surface enhancements treatments: laser shock peening, cavitation shotless peening and ultrasonic nano structure modification on residual stress, hardness, plastic deformation and changes in near surface microstructure introduced in a Ni-Base superalloy, IN718 SPF(Super plastic forming). Coupons of the alloy were peened using two different conditions of each treatment and results compared to achieve a better understanding of underlying mechanisms of these techniques. Results indicate that there are significant differences in mechanisms of these surface treatments leading to differences in material response.

Original language	English
Pages (from-to)	346-355
Number of pages	10
Journal	Materials Science and Engineering A
Volume	576
DOIs	https://doi.org/10.1016/j.msea.2013.04.021
Publication status	Published - 2013 Aug 1

Keywords

Cavitation
Laser shock peening
Ni-based superalloys
Residual stresses
X-ray diffraction

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Comparison of mechanisms of advanced mechanical surface treatments in nickel-based superalloy",

abstract = "Mechanical surface enhancement techniques are used to introduce compressive residual stresses to enhance the fatigue life and corrosion resistance of metallic components. In this study, we compare the effects of three advanced mechanical surface enhancements treatments: laser shock peening, cavitation shotless peening and ultrasonic nano structure modification on residual stress, hardness, plastic deformation and changes in near surface microstructure introduced in a Ni-Base superalloy, IN718 SPF(Super plastic forming). Coupons of the alloy were peened using two different conditions of each treatment and results compared to achieve a better understanding of underlying mechanisms of these techniques. Results indicate that there are significant differences in mechanisms of these surface treatments leading to differences in material response.",

keywords = "Cavitation, Laser shock peening, Ni-based superalloys, Residual stresses, X-ray diffraction",

author = "Amrinder Gill and Abhishek Telang and Mannava, {S. R.} and Dong Qian and Pyoun, {Young Shik} and Hitoshi Soyama and Vasudevan, {Vijay K.}",

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T1 - Comparison of mechanisms of advanced mechanical surface treatments in nickel-based superalloy

AU - Gill, Amrinder

AU - Telang, Abhishek

AU - Mannava, S. R.

AU - Qian, Dong

AU - Pyoun, Young Shik

AU - Soyama, Hitoshi

AU - Vasudevan, Vijay K.

PY - 2013/8/1

Y1 - 2013/8/1

N2 - Mechanical surface enhancement techniques are used to introduce compressive residual stresses to enhance the fatigue life and corrosion resistance of metallic components. In this study, we compare the effects of three advanced mechanical surface enhancements treatments: laser shock peening, cavitation shotless peening and ultrasonic nano structure modification on residual stress, hardness, plastic deformation and changes in near surface microstructure introduced in a Ni-Base superalloy, IN718 SPF(Super plastic forming). Coupons of the alloy were peened using two different conditions of each treatment and results compared to achieve a better understanding of underlying mechanisms of these techniques. Results indicate that there are significant differences in mechanisms of these surface treatments leading to differences in material response.

AB - Mechanical surface enhancement techniques are used to introduce compressive residual stresses to enhance the fatigue life and corrosion resistance of metallic components. In this study, we compare the effects of three advanced mechanical surface enhancements treatments: laser shock peening, cavitation shotless peening and ultrasonic nano structure modification on residual stress, hardness, plastic deformation and changes in near surface microstructure introduced in a Ni-Base superalloy, IN718 SPF(Super plastic forming). Coupons of the alloy were peened using two different conditions of each treatment and results compared to achieve a better understanding of underlying mechanisms of these techniques. Results indicate that there are significant differences in mechanisms of these surface treatments leading to differences in material response.

KW - Cavitation

KW - Laser shock peening

KW - Ni-based superalloys

KW - Residual stresses

KW - X-ray diffraction

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