精彩书摘:
《镁合金冶金基本原理(影印版 英文版)》:
An industrially important and relevant property,namely damping,is worthmentioning when discussing the elastic behaviour of magnesium.As a gen—eral rule, we can state that lower strength, annealed conditions,larger grainsizes and lower solute contents would result in better damping properties.It is generally citecl that magnesium has better damping characteristics thanils competitor light weight metals aluminium and titanium.43 Different mag—nesium alloy systems may display good damping properties at a variety of temperatUfes,in many cases outside the range of current interest in magne—sium alloys.For automotive power—train applications, for example, only puremagnesium appears to promise a high damping peak for the relevant tem—perature range, which is of little use as pure metal is not useable in thoseapplications.45 It should be borne in mind that the choice of alloy in terms ofdamping capacity should be assessed based on the frequency and amplitudeof the vibration or noise,and the temperature involved in the particular appli—cation of concern.
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内容简介:
《镁合金冶金基本原理(影印版 英文版)》介绍了镁合金冶金的基本理论和技术,主要包括:镁的物理冶金、镁合金的热力学性能、镁合金的沉淀析出过程、镁的合金化及镁合金设计、镁合金成形、镁合金腐蚀及表面处理等,重点介绍了镁合金及镁基复合材料在航空、汽车、医疗器械等领域的应用。
《镁合金冶金基本原理(影印版 英文版)》对镁合金熔炼及成形加工技术的研究和生产具有参考价值,适合冶金、材料加工等行业的工程技术人员使用,也可供高等院校相关专业的师生参考。
目录:
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1 Primary production of magnesium
1.1 Introduction
1.2 Raw materials and production methods
1.3 Chemistry of extraction of magnesium from raw material
1.4 Fused salt electrolysis
1.5 Impurity removal chemistry in thermal processing
1.6 Process equipment
1.7 Melting, refining and casting magnesium
1.8 Magnesium alloy powder
1.9 Future trends
1.10 Conclusion
1.11 References
2 Physical metallurgy of magnesium
2.1 Introduction
2.2 Crystal structure and its consequences
2.3 Plastic deformation behaviour of magnesium and its alloys
2.4 Critical resolved shear stress (CRSS), slip and twinning
2.5 Fatigue behaviour
2.6 Creep behaviour
2.7 Recrystallization and grain growth
2.8 Future trends
2.9 References
3 Thermodynamic properties of magnesium alloys
3.1 Introduction
3.2 Fundamentals of thermodynamics
3.3 Thermodynamic properties of Mg alloys and compounds
3.4 First-principles thermodynamics of Mg alloys and compounds
3.5 Future trends
3.6 Acknowledgements
3.7 References
4 Understanding precipitation processes in magnesium alloys
4.1 Introduction
4.2 Precipitation from supersaturated solid solution
4.3 Precipitation hardening magnesium based alloy systems
4.4 Role of precipitation hardening in the development of high strength magnesium alloys
4.5 Conclusions and future trends
4.6 Sources of further information and advice
4.7 References
5 Alloying behavior of magnesium and alloy design
5.1 Introduction
5.2 Alloy design: solid solution alloying of magnesium
5.3 Alloy design: compound formation in magnesium alloys
5.4 The effects of second phases on the mechanical behavior of magnesium
5.5 Alloying with surface-active elements
5.6 Alloying elements and their effects
5.7 Summary: magnesium alloy design to enhance properties
5.8 References
6 Forming of magnesium and its alloys
6.1 Introduction
6.2 Testing for formability
6.3 Deformation mechanisms and formability
6.4 Yield characteristics and drawability
6.5 Work hardening and stretching
6.6 Failure strain behaviour, compression, rolling and bending
6.7 Superplastic deformation and hot forming
6.8 Hot cracking and extrusion
6.9 Conclusions: key issues affecting the formability of magnesium
6.10 Future trends
6.11 References
7 Corrosion and surface finishing of magnesium and its alloys
7.1 Introduction
7.2 Magnesium corrosion in aqueous media
7.3 Surface finishing
7.4 Implications for improving corrosion resistance and future trends
7.5 Conclusions
7.6 References
8 Applications: aerospace, automotive and other structural applications of magnesium
8.1 Introduction
8.2 Material properties
8.3 Alloy development
8.4 Manufacturing process development
8.5 Aerospace applications
8.6 Automotive applications
8.7 Other applications
8.8 Future trends
8.9 Acknowledgements
8.10 References
9 Applications: magnesium-based metal matrix composites (MMCs)
9.1 Introduction
9.2 Reinforcements for magnesium metal matrix composites (MMCs)
9.3 Processing of magnesium composites
9.4 Interfaces, wetting and compatibility
9.5 Properties of magnesium-based MMCs
9.6 Conclusions and future trends
9.7 References
10 Applications: use of magnesium in medical applications
10.1 Introduction to biodegradable implants based on metals
10.2 Fundamental concepts of biodegradation
10.3 Magnesium-based biodegradable metals
10.4 Recent research and future product development
10.5 Sources of further information and advice
10.6 References
10.7 Appendix: list of abbreviations
Index
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