Microstructural Characteristics and Prediction of Austenite Grain Size in Heat Affected Zone of High Strength Low Alloy Steel
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概要
- 論文の詳細を見る
High strength low alloy steel in direct quenched and tempered condition was welded using gas shielded arc welding process at different welding heat inputs. The austenite grain size adjacent to fusion line was measured in order to calculate the apparent activation energy Qapp for grain boundary movement, the time exponent n and the kinetic constant K. The austenite grain size in heat affected zone was evaluated using these calculated parameters, and was compared with the austenite grain size measured in real heat affected zone of joint. The microstructure changes in heat affected zone were studied. Results indicated that the calculated parameters can be used to the predication of austenite grain size in heat affected zone area heated to a temperature of above 1100°C. The prediction results have a good agreement with measurement, while calculation at low temperatures was poor.
- 社団法人 日本鉄鋼協会の論文
- 2011-02-15
著者
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Zhang Lei
Key Laboratory For Liquid-solid Structural Evolution And Processing Of Materials Ministry Of Educati
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JIANG Qinglei
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Educat
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LI Yajiang
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Educat
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WANG Juan
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Educat
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Li Yajiang
Key Laboratory For Liquid-solid Structural Evolution And Processing Of Materials Ministry Of Educati
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Jiang Qinglei
Key Laboratory For Liquid-solid Structural Evolution And Processing Of Materials Ministry Of Educati
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Wang Juan
Key Laboratory For Liquid-solid Structural Evolution And Processing Of Materials Ministry Of Educati
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ZHANG Lei
Key Lab of Display Science and Technology of Sichuan Province, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC)
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