Mechanical Engineers' Handbook, Volume 1, (eBook)

Materials and Engineering Mechanics

Myer Kutz (Herausgeber)

eBook Download: EPUB
2015 | 4. Auflage
1040 Seiten
Wiley (Verlag)
978-1-118-90748-1 (ISBN)

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Full coverage of materials and mechanical design in engineering

Mechanical Engineers' Handbook, Fourth Edition provides a quick guide to specialized areas you may encounter in your work, giving you access to the basics of each and pointing you toward trusted resources for further reading, if needed. The accessible information inside offers discussions, examples, and analyses of the topics covered.

This first volume covers materials and mechanical design, giving you accessible and in-depth access to the most common topics you'll encounter in the discipline: carbon and alloy steels, stainless steels, aluminum alloys, copper and copper alloys, titanium alloys for design, nickel and its alloys, magnesium and its alloys, superalloys for design, composite materials, smart materials, electronic materials, viscosity measurement, and much more.

  • Presents comprehensive coverage of materials and mechanical design
  • Offers the option of being purchased as a four-book set or as single books, depending on your needs
  • Comes in a subscription format through the Wiley Online Library and in electronic and custom formats

Engineers at all levels of industry, government, or private consulting practice will find Mechanical Engineers' Handbook, Volume 1 a great resource they'll turn to repeatedly as a reference on the basics of materials and mechanical design.



MYER KUTZ holds engineering degrees from the Massachusetts Institute of Technology and Rensselaer Polytechnic Institute. He has worked with numerous professional and technical publishing houses as an executive or consultant and is the author or editor of more than 15 engineering reference books.

MYER KUTZ holds engineering degrees from the Massachusetts Institute of Technology and Rensselaer Polytechnic Institute. He has worked with numerous professional and technical publishing houses as an executive or consultant and is the author or editor of more than 15 engineering reference books.

Preface ix

Vision for the Fourth Edition xi

Contributors xiii

Part 1 Materials 1

1. Carbon and Alloy Steels 3
Bruce L. Bramfitt

2. Stainless Steels 39
James Kelly

3. Aluminum Alloys 61
J. G. Kaufman

4. Copper and Copper Alloys 117
Konrad J. A. Kundig and Robert D. Weed

5. A Guide to Engineering Selection of Titanium Alloys for Design 229
Matthew J. Donachie

6. Nickel and Its Alloys 267
Gaylord D. Smith and Brian A. Baker

7. Magnesium and Its Alloys 289
Robert E. Brown

8. A Guide to Engineering Selection of Superalloys for Design 299
Matthew J. Donachie, John Marcin, and Stephen J. Donachie (deceased)

9. Thermoplastics, Thermosets, and Elastomers--Descriptions and Properties 353
Edward N. Peters

10. Composite Materials 401
Carl Zweben

11. Smart Materials 439
James A. Harvey

12. Overview of Ceramic Materials, Design, and Application 453
R. Nathan Katz

13. Electronic Materials and Packaging 475
Warren C. Fackler

14. Sources of Material Data 515
J. G. Kaufman

15. Quantitative Methods of Materials Selection 531
Mahmoud M. Farag

Part 2 Engineering Mechanics 553

16. Stress Analysis 555
Franklin E. Fisher

17. Force Measurement 623
Patrick Collins

18. Resistive Strain Measurement Devices 659
Mark Tuttle

19. An Introduction to the Finite-Element Method 681
Tarek I. Zohdi

20. Failure Models: Performance and Service Requirements for Metals 703
J. A. Collins, G.P. Potirniche, and S. R. Daniewicz

21. Failure Analysis of Plastics 771
Vishu Shah

22. Failure Modes: Performance and Service Requirements for Ceramics 789
Dietrich Munz

23. Viscosity Measurement 809
Ann M. Anderson, Bradford A. Bruno, and Lilla Safford Smith

24. Tribology Measurements 837
Prasanta Sahoo

25. Vibration and Shock 861
Singiresu S. Rao

26. Acoustics 885
Jonathan D. Blotter, Scott D. Sommerfeldt, and Kent L. Gee

27. Acoustical Measurements 953
Brian E. Anderson, Jonathan D. Blotter, Kent L. Gee, and Scott D. Sommerfeldt

Index 997

Chapter 1
Carbon and Alloy Steels


Bruce L. Bramfitt

Research Laboratories, International Steel Group, Inc., Bethlehem, Pennsylvania

 Reprinted from Handbook of Materials Selection, Wiley, New York, 2002, by permission of the publisher.

  1. 1 INTRODUCTION
  2. 2 STEEL MANUFACTURE
  3. 3 DEVELOPMENT OF STEEL PROPERTIES
  4. 4 ROLE OF ALLOYING ELEMENTS IN STEEL
  5. 5 HEAT TREATMENT OF STEEL
  6. 6 CLASSIFICATION AND SPECIFICATIONS OF STEELS
    1. 6.1 Carbon Steels
    2. 6.2 Alloy Steels
  7. 7 SUMMARY
  8. BIBLIOGRAPHY
  9. HANDBOOKS
  10. GENERAL REFERENCES
  11. SPECIFICATIONS ON STEEL PRODUCTS

1 Introduction


Steel is the most common and widely used metallic material in today's society. It can be cast or wrought into numerous forms and can be produced with tensile strengths exceeding 5 GPa. A prime example of the versatility of steel is in the automobile where it is the material of choice and accounts for over 60% of the weight of the vehicle. Steel is highly formable as seen in the contours of the automobile outerbody. Steel is strong and is used in the body frame, motor brackets, driveshaft, and door impact beams of the vehicle. Steel is corrosion resistant when coated with the various zinc-based coatings available today. Steel is dent resistant when compared with other materials and provides exceptional energy absorption in a vehicle collision. Steel is recycled and easily separated from other materials by a magnet. Steel is inexpensive compared with other competing materials such as aluminum and various polymeric materials.

In the past, steel has been described as an alloy of iron and carbon. Today, this description is no longer applicable since in some very important steels, e.g., interstitial-free (IF) steels and type 409 ferritic stainless steels, carbon is considered an impurity and is present in quantities of only a few parts per million. By definition, steel must be at least 50% iron and must contain one or more alloying elements. These elements generally include carbon, manganese, silicon, nickel, chromium, molybdenum, vanadium, titanium, niobium, and aluminum. Each chemical element has a specific role to play in the steelmaking process or in achieving particular properties or characteristics, e.g., strength, hardness, corrosion resistance, magnetic permeability, and machinability.

2 Steel Manufacture


In most of the world, steel is manufactured by integrated steel facilities that produce steel from basic raw materials, i.e., iron ore, coke, and limestone. However, the fastest growing segment of the steel industry is the “minimill” that melts steel scrap as the raw material. Both types of facilities produce a wide variety of steel forms, including sheet, plate, structural, railroad rail, and bar products.

  1. Ironmaking. When making steel from iron ore, a blast furnace chemically reduces the ore (iron oxide) with carbon in the form of coke. Coke is a spongelike carbon mass that is produced from coal by heating the coal to expel the organic matter and gases. Limestone (calcium carbonate) is added as a flux for easier melting and slag formation. The slag, which floats atop the molten iron, absorbs many of the unwanted impurities. The blast furnace is essentially a tall hollow cylindrical structure with a steel outer shell lined on the inside with special refractory and graphite brick. The crushed or pelletized ore, coke, and limestone are added as layers through an opening at the top of the furnace, and chemical reduction takes place with the aid of a blast of preheated air entering near the bottom of the furnace (an area called the bosh). The air is blown into the furnace through a number of water-cooled copper nozzles called tuyeres. The reduced liquid iron fills the bottom of the furnace and is tapped from the furnace at specified intervals of time. The product of the furnace is called pig iron because in the early days the molten iron was drawn from the furnace and cast directly into branched mold configurations on the cast house floor. The central branch of iron leading from the furnace was called the “sow” and the side branches were called “pigs.” Today the vast majority of pig iron is poured directly from the furnace into a refractory-lined vessel (submarine car) and transported in liquid form to a basic oxygen furnace (BOF) for refinement into steel.
  2. Steelmaking. In the BOF, liquid pig iron comprises the main charge. Steel scrap is added to dilute the carbon and other impurities in the pig iron. Oxygen gas is blown into the vessel by means of a top lance submerged below the liquid surface. The oxygen interacts with the molten pig iron to oxidize undesirable elements. These elements include excess carbon (because of the coke used in the blast furnace, pig iron contains over 2% carbon), manganese, and silicon from the ore and limestone and other impurities like sulfur and phosphorus. While in the BOF, the liquid metal is chemically analyzed to determine the level of carbon and impurity removal. When ready, the BOF is tilted and the liquid steel is poured into a refractory-lined ladle. While in the ladle, certain alloying elements can be added to the steel to produce the desired chemical composition. This process takes place in a ladle treatment station or ladle furnace where the steel is maintained at a particular temperature by external heat from electrodes in the lid placed on the ladle. After the desired chemical composition is achieved, the ladle can be placed in a vacuum chamber to remove undesirable gases such as hydrogen and oxygen. This process is called degassing and is used for higher quality steel products such as railroad rail, sheet, plate, bar, and forged products. Stainless steel grades are usually produced in an induction or electric arc furnace, sometimes under vacuum. To refine stainless steel, the argon–oxygen decarburization (AOD) process is used. In the AOD, an argon–oxygen gas mixture is injected through the molten steel to remove carbon without a substantial loss of chromium (the main element in stainless steel).
  3. Continuous Casting. Today, most steel is cast into solid form in a continuous-casting (also called strand casting) machine. Here, the liquid begins solidification in a water-cooled copper mold while the steel billet, slab, or bloom is withdrawn from the bottom of the mold. The partially solidified shape is continuously withdrawn from the machine and cut to length for further processing. The continuous-casting process can proceed for days or weeks as ladle after ladle of molten steel feeds the casting machine. Some steels are not continuously cast but are poured into individual cast iron molds to form an ingot that is later reduced in size by forging or a rolling process to some other shape. Since the continuous-casting process offers substantial economic and quality advantages over ingot casting, most steel in the world is produced by continuous casting.
  4. Rolling/Forging. Once cast into billet, slab, or bloom form, the steel is hot rolled through a series of rolling mills or squeezed/hammered by forging to produce the final shape. To form hot-rolled sheet, a 50–300-mm-thick slab is reduced to final thickness, e.g., 2 mm, in one or more roughing stands followed by a series of six or seven finishing stands. To obtain thinner steel sheet, e.g., 0.5 mm, the hot-rolled sheet must be pickled in acid to remove the iron oxide scale and further cold rolled in a series of rolling stands called a tandem mill. Because the cold-rolling process produces a hard sheet with little ductility, it is annealed either by batch annealing or continuous annealing. New casting technology is emerging where thin sheets (under 1 mm) can be directly cast from the liquid through water-cooled, rotating rolls that act as a mold as in continuous casting. This new process eliminates many of the steps in conventional hot-rolled sheet processing. Plate steels are produced by hot rolling a slab in a reversing roughing mill and a reversing finishing mill. Steel for railway rails is hot rolled from a bloom in a blooming mill, a roughing mill, and one or more finishing mills. Steel bars are produced from a heated billet that is hot rolled in a series of roughing and finishing mills. Forged steels are produced from an ingot that is heated to forging temperature and squeezed or hammered in a hydraulic press or drop forge. The processing sequence in all these deformation processes can vary depending on the design, layout, and age of the steel plant.

3 Development of Steel Properties


In order to produce a steel product with the desired properties, basic metallurgical principles are used to control three things:

This means that the steel composition and processing route must be closely controlled in order to produce the proper microstructure. The final microstructure is of utmost importance in determining the properties of the steel product. This section will explore how various microstructures are developed and the unique characteristics of each microstructural component in steel. The next section will discuss how alloy composition also plays a major role.

  1. Iron–Carbon Equilibrium Diagram. Since most steels contain carbon, the basic principles of microstructural development can be explained by the iron–carbon equilibrium diagram. This diagram, shown in Fig....

Erscheint lt. Verlag 2.3.2015
Sprache englisch
Themenwelt Technik Maschinenbau
Schlagworte Maschinenbau • Maschinenbau - Entwurf • mechanical engineering • Mechanical Engineering - Design
ISBN-10 1-118-90748-5 / 1118907485
ISBN-13 978-1-118-90748-1 / 9781118907481
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