Thermal Relaxation Behavior of Residual Stress and Microstructure in Shot Peened S30432 Steel at Elevated Temperatures
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- Zhan K.
- School of Materials Science and Engineering, Shanghai Jiao Tong University
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- Wu X. Y.
- School of Materials Science and Engineering, Shanghai Jiao Tong University
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- Jiang C. H.
- School of Materials Science and Engineering, Shanghai Jiao Tong University
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- Ji V.
- LEMHE/ICMMO, UMR 8182, Université Paris-Sud 11
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The thermal relaxation behavior of residual stress and microstructure at elevated temperatures in S30432 austenite steel after shot peening was investigated by X-ray residual stress analyzer. The effect of the exposure time and the applied temperature on the residual stress and microstructure relaxation was particularly analyzed and discussed. A significant decrease of the residual stress values and peak breadth was observed in the first period of exposure time, followed by slowing down and then stabilization. It was also observed that a higher applied temperature produced greater relaxation. The relaxation behavior could be described by Zener–Wert–Avrami function. The thermal stability of microstructure was higher than that of the residual stress. Both of the activation enthalpy of residual stress and microstructure relaxation were higher than that of iron self-diffusion in γ-Fe.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 53 (6), 1195-1198, 2012
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204249973632
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- NII論文ID
- 10030630509
- 130004824883
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 023682677
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可