ME_435_-_Week_1_-_Strengthening_Mechanis

ME_435_-_Week_1_-_Strengthening_Mechanis - Strengthening...

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Click to edit Master subtitle style Strengthening Mechanisms (Chapters 3, 7-9) Week 1 Lecture Notes R. Clemmer ME 435 Fall 2011
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22 References q ASM Metals Reference Book, 3rd ed., ASM International, 1993 q F.C. Campbell, “Elements of Metallurgy and Engineering Alloys,” ASM International, 2008 q D.R. Askeland, “The Science and Engineering of Materials,” 5th ed., Chapman and Hall, 2006 q J.L. Murray, 1985, ASM Handbooks Online: http://products.asminternational.org/hbk/index.jsp
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33 q Dislocations q Strengthening Mechanisms 1. Solidification 2. Strain Hardening 3. Solid Solution Strengthening 4. Dispersion Strengthening 5. Precipitation (Age) Hardening
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Click to edit Master subtitle style Strengthening Mechanisms
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Engineering Stress – Strain Curve 56-5 (Askeland)
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Dislocations q Dislocations are line imperfections in an otherwise perfect crystal q They are introduced during solidification or during plastic (permanent) deformation q Exist in nearly all materials but are particularly important in metals 66
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ME_435_-_Week_1_-_Strengthening_Mechanis - Strengthening...

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