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研究生:王錫欽
研究生(外文):Wang, Xi Qin
論文名稱:化學成份及軋延製程對超低碳變�空K鋼性質的影響
論文名稱(外文):The effects of chemical composition and rolling processes on the properties of ultra-low-carbon bainitic steels
指導教授:高伯威
指導教授(外文):Gao, Bo Wei
學位類別:博士
校院名稱:國立中山大學
系所名稱:材料科學研究所
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:1994
畢業學年度:82
語文別:中文
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Cover
Acknowledgement
Chinese Abstract
English Abstract
List of Figure caption
Nomenclature
1. Introduction
2. Background of research
2.1 The development history of bainite
2.2 The transformation mechanisms and classification of bainite
2.3 The crystallography and structure characteristics of bainite
2.4 The structure-property relationship in ULCB, steels
2.4.1 Strength
2.4.2 Toughness
2.5 The effect of alloy on the properties of ULCB steels
2.6 The effect of rolling processes on the properties of ULCB steels
3. Scope of this study
4. Experimental procedures
4.1 Experimental steels
4.2 Rolling processes
4.3 Phase transformation and microstructure evaluation
4.4 Property evaluation
5.Experimental results and discussion
5.1 Phase transformation, structure characteristics of ULCE steels
5.1.1 The CCT diagram of a basic ULCB steel -
5.1.2 The structure characteristic of an as-rolled ULCB steel
5.2 The effect of chemical composition on the properties of ULCB steels
5.2.1 Boron effect
5.2.2 The synergistic hardenability effect of Nb and boron
5.2.3 Carbon effect
5.2.4 Mn effect
5.2.5 Mo effect
5.2.6 Ni effect
5.2.7 Summarization of Mn, Mo, and Ni effect
5.3 Theoretical prediction of bainite transformation temperature and amount of M/A-constituent formation
5.3.1 Thermodynamic model for Bs temperature prediction
5.3.2 Thermodynamic model for the prediction of volume fraction of M/A-constituent formation
5.4 The effect of rolling processes on the properties of ULCB steels
5.4.1 The effect of finish rolling temperature
5.4.2 The effect of accelerated cooling after rolling
5.4.3 The effect of slab reheating temperature
5.4.4 The effect of finish rolling thickness
5.4.5 The aging behavior -
5.5 The development of ULCB steels for real application
5.5.1 Metallurgical model for ULCE steel product design
5.5.2 The mechanical properties of developed ULCB steel
5.5.3 The HIC sensitivity of ULCB steel
5.5.4 The weldability of ULCB steel
6. Conclusions
Appendix
Reference
Tables
Figures
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