Theory of weldability of metals and alloys

著者

書誌事項

Theory of weldability of metals and alloys

Ivan Hrivňák

（Materials science monographs, 74）

Elsevier, 1992

タイトル別名

Teória zvaritel̕nosti kovov a zliatin

統一タイトル

Teória zvaritel̕nosti kovov a zliatin

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注記

Translation of: Teória zvaritel̕nosti kovov a zliatin

Includes bibliographical references (p. 356-369) and index

内容説明・目次

内容説明

This book reviews the behaviour of metals and alloys during welding. In the first part the heat flow in arc welding processes is discussed. The weld thermal cycle is explained in terms of heat input, and the geometry of weld and thicknesses to be welded. The real welding cycle is described in terms of thermal and strain cycles. The weld metal is characterized in terms of fusion stage, absorption of gases and stage of metal crystallization and structural transformation. The metallurgical background of cracking is described by a full set of crackability tests along with the evaluation of metals from the point of view of crackability. Post welding heat treatment is reviewed, and includes the relaxation of stresses induced by welding. Guidelines are given for the selection of steels for welded structures. Several chapters examine the weldability of particular steels, including high strength steels, stainless steels, high alloyed steels, cryogenic steels and other metals and alloys. The theories are quantified in the form of calculations or computing programmes. Readers will find sufficent data for software processing.

目次

  • 1. Welding. 2. Thermal Cycle in Welding. 3. Strain Stress Welding Cycle. 4. Heat Affected Zone. Precipitation processes in the heat affected zone. Grain growth in the underbead zone. Behaviour of inclusions in heat affected zones. Properties of the heat affected zone. 5. The Weld Metal. The melting stage. Gas absorption in welds. Stage of weld metal solidification. Segregation and liquation. Stage of microstructural transformation. Properties of weld metals. 6. Weld Joint Cracking. Hot cracking. Cold cracking. Lamellar tearing. Stress relieve cracks. 7. Heat Treatment of Welded Joints. Review of requirements and prescriptions of classification societies concerning annealing. Temperature of stress relief heat treatment. Rate of heating and cooling. Mechanical modes of stress relaxation. Recrystallization heat treatment and annealing with partial recrystallization. 8. Selection of Steels for Welded Structures. 9. Weldable Structural Steels. 10. Weldability of Chromium, CrMo and CrMoV Steels. Metallurgy of base material. Heat treatment. Welding processes. Selection of filler material. Weldability. Post welding heat treatment. Microstructure and properties of weld metal. Operational properties of weld joints. Thermal embrittlement. 11. Steels for Cryogenic Temperatures. Metallurgical background. Austenite decomposition diagrammes for nickel steels. Heat treatment. Thermal embrittlement. Weldability. Selection of filler material. 12. Welding of High-Alloy Steels. Austenitic manganese steels. 13. Welding of Stainless Steels. Fundamental characteristics of weldability and the welding process. Stainless steels: Martensitic
  • Ferritic
  • Austenitic
  • Duplex ferrite-austenite
  • Martensitic austenitic
  • Precipitation-hardened
  • Practice in welding. 14. Cast Iron. Weldability of cast iron. 15. Nickel and its Alloys. 16. Copper Alloys. Weldability. Post welding heat treatment. 17. Weldability of Aluminium Alloys. Crackability tests. Choice of filler materials. Preparation for joining. Weldability. Welding. 18. Magnesium Alloys. Welding. 19. Cobalt. 20. Titanium, Tantalum, Zirconium, Hafnium and Niobium. 21. Welding of Beryllium, Uranium, Molybdenum, Vanadium, Gold, Silver and Lead. Summary. References. Index.

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