A Simple Method for Prediction of Shelf Life of Bake Hardening Steels
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概要
- 論文の詳細を見る
The shelf life of bake hardening (BH) steel is generally reported to be inferior to that of conventional grades due to presence of solute elements in the steel matrix. Hence the assessment of shelf life of BH steel is essential for automobile manufacturers to produce the components free from defects but a reliable method is not yet available to assess it in an industrial condition. Hence to formulate a simple method for assessing shelf life of BH steel, aging behavior of BH steels has been studied at various temperatures (50–100°C). Analysis of data showed higher activation energy (88–102 kJ/mol) than that of the diffusion of C or N in iron. Using the derived activation energy, K-value in Hundy equation was modified. The prediction of shelf life using earlier correlation was compared to that of modified equation. Based on the present analysis, a simple accelerated test has been presented for prediction of the shelf life applicable in an industrial practice.
- 社団法人 日本鉄鋼協会の論文
- 2008-12-15
著者
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Baek Sang-jin
School Of Materials Sci. And Engineering Seoul National Univ.
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Lee Hu-chul
School Of Materials Science And Engineering Seoul National University
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Baek Sang-jin
School Of Materials Science And Engineering Seoul National University
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BHAGAT Amar
Tata Steel
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- Precipitation and Recrystallization Behavior in Extra Low Carbon Steels
- A Simple Method for Prediction of Shelf Life of Bake Hardening Steels
- Variant Selection in Mechanically-induced Martensitic Transformation of Metastable Austenitic Steel
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