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101 - 150 of 249 search results for scholarships page |d=2010 |u:www.phase-trans.msm.cam.ac.uk where 2 match all words and 247 match some words.

  1. Results that match 1 of 2 words

  2. Joining Aerospace Al-Alloys

    www.phase-trans.msm.cam.ac.uk/2002/robson/text18.htm
    7 Jun 2010: Joining Aerospace Al-Alloys. Mechanical fasteners (rivets) are still the most widely used method of joining airframe components. Riveted joints have a number of disadvantages. Notes:.

  3. Difficulties with welding

    www.phase-trans.msm.cam.ac.uk/2002/robson/text19.htm
    7 Jun 2010: Difficulties with welding. One of the major metallurgical problems preventing the widespread application of welding to aerospace Al-alloys is solidification cracking.

  4. Dispersoids

    www.phase-trans.msm.cam.ac.uk/2002/robson/text34.htm
    7 Jun 2010: Dispersoids. Fine Al3Zr dispersoid particles precipitate during homogenization of 7050. Dispersoid particles are important for the control of grain structure during processing. Act to “pin” grain boundaries. Notes:.

  5. Nucleation

    www.phase-trans.msm.cam.ac.uk/2002/robson/text39.htm
    7 Jun 2010: Nucleation. Nucleation rate (number of new particles formed/s) depends on. Thermodynamic driving force for formation of new phase. Diffusion rate (temperature). Interfacial energy between nucleus and matrix. Notes:.

  6. Effect of Zirconium Segregation

    www.phase-trans.msm.cam.ac.uk/2002/robson/text43.htm
    7 Jun 2010: Effect of Zirconium Segregation. In practice, Zr concentration varies across a grain due to segregation during casting. Leads to non-uniform dispersoid precipitation during homogenization. Notes:.

  7. Effect of Dispersoid Distribution

    www.phase-trans.msm.cam.ac.uk/2002/robson/text46.htm
    7 Jun 2010: Effect of Dispersoid Distribution. Inhomogeneously distributed dispersoids are not best for control of grain structure. In regions where there are few dispersoids, new grains can form (recrystallization) - this is undesirable.

  8. Homogenisation of 3xxx Alloys AA3104: Al-0.4%Fe-0.9%Mn-1.2%Mg-0.2%Cu- …

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text45.htm
    7 Jun 2010: Homogenisation of 3xxx Alloys AA3104: Al-0.4%Fe-0.9%Mn-1.2%Mg-0.2%Cu- 0.2%Si. Notes:.

  9. Homogenisation of 3xxx Alloys AA3104:…

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text46.htm
    7 Jun 2010: Homogenisation of 3xxx Alloys AA3104: Al-0.4%Fe-0.9%Mn-1.2%Mg-0.2%Cu-0.2%Si. Notes:.

  10. Modelling Examples

    www.phase-trans.msm.cam.ac.uk/2002/robson/text10.htm
    7 Jun 2010: Modelling Examples. Finite element modelling to optimize extrusion processing of aerospace Al-alloys. Thermodynamic modelling for the development of weldable aerospace aluminium alloys. Precipitation kinetics modelling for optimization of dispersoid

  11. Including Effect of Segregation

    www.phase-trans.msm.cam.ac.uk/2002/robson/text44.htm
    7 Jun 2010: Including Effect of Segregation. To model Al3Zr distribution across a grain. Divide the distance from grain edge to centre into large number of elements. Model dispersoid evolution in each element. Allow zirconium redistribution by diffusion between

  12. Importance of Improving Can Stock Performance (The Canning Market)

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text21.htm
    7 Jun 2010: Importance of Improving Can Stock Performance (The Canning Market). Probably the single largest use of aluminium. 12% of total global Al output used to make beverage cans. Market is still evolving. Cost reduction. Weight reduction (down gauging).

  13. Comparison of peak positions and relative peak intensity with…

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text37.htm
    7 Jun 2010: XRD. Comparison of peak positions and relative peak intensity with standard spectra give phase identification. Comparison of peak intensity ratios with standard calibration curves gives estimate of relative concentration of phases. For multiple

  14. Improved Can End Stock

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text56.htm
    7 Jun 2010: Improved Can End Stock. Good strength. Solid solution strengthening, strain hardening. Controlled by alloying and thermomechanical processing. Good Formability. Reduce number of coarse particles. Earing control. To minimise metal wastage during

  15. Value of Calculations

    www.phase-trans.msm.cam.ac.uk/2002/robson/text27.htm
    7 Jun 2010: Value of Calculations. Thermodynamic calculations suggest modifications to current alloy compositions to improve weldability. Focus experimental investigation on promising compositions. Save both development time and cost. New weld filler wires have

  16. Kinetic Modelling

    www.phase-trans.msm.cam.ac.uk/2002/robson/text30.htm
    7 Jun 2010: Kinetic Modelling. Aim to predict key microstructural parameters as a function of alloy composition, temperature and time. Difficult problem for aerospace Al-alloys due to complex microstructures and processing routes. Large number of possible

  17. Modelling Dispersoid Precipitation

    www.phase-trans.msm.cam.ac.uk/2002/robson/text35.htm
    7 Jun 2010: Modelling Dispersoid Precipitation. Effectiveness of dispersoids depends on their size, spacing and distribution. Develop model for dispersoid precipitation and use to optimize homogenization treatment to give best dispersoid distribution. To model

  18. Optimizing Dispersoid Distribution

    www.phase-trans.msm.cam.ac.uk/2002/robson/text47.htm
    7 Jun 2010: Optimizing Dispersoid Distribution. Use model to determine optimum homogenization conditions to promote dispersoid precipitation in low Zr regions. Aim is to reduce the formation of new (recrystallized) grains during processing. For best

  19. Two Step Practice

    www.phase-trans.msm.cam.ac.uk/2002/robson/text50.htm
    7 Jun 2010: Two Step Practice. Two step homogenization practice may be of benefit. Step 1: Hold at a temperature to precipitate optimum dispersoid distribution. Step 2: Hold at final homogenization temperature. Model used to determine best conditions for step 1.

  20. Feature Detection and Classification (FDC) Technique

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text32.htm
    7 Jun 2010: Feature Detection and Classification (FDC) Technique. The apparent concentration of FeMn vs. Si of each point is plotted. Reference to the literature and experimental data on standard samples have led to boundaries between the phases being determined

  21. Intermetallic Extraction & Analysis

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text34.htm
    7 Jun 2010: Intermetallic Extraction & Analysis. The technique was developed at Sintef during the 1980s, enabling sufficient quantities of dry butanol to be distilled for the reliable extraction and collection in the absence of H2O, of sufficient particulate

  22. Die Design

    www.phase-trans.msm.cam.ac.uk/2002/robson/text13.htm
    7 Jun 2010: Die Design. Die must be designed to ensure balanced metal flow to avoid bending of extrusion. Die shape influences metal temperature-aim to avoid cold or hot spots. Traditionally, die design based on past experience and modifications of existing dies

  23. Prediction of Microstructure

    www.phase-trans.msm.cam.ac.uk/2002/robson/text29.htm
    7 Jun 2010: Prediction of Microstructure. Thermodynamic calculations give an indication of likely phases but give no information about. How phase is distributed. Particle size, spacing and location. How microstructure changes as function of time. Transformation

  24. Effect of Alloy Composition and Casting Conditions on Intermetallics

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text40.htm
    7 Jun 2010: Effect of Alloy Composition and Casting Conditions on Intermetallics. Their composition and crystallographic structure depends upon the alloy composition and casting velocity of the ingot and cooling rate of the melt. The type of intermetallics can

  25. Slide 53

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text52.htm
    7 Jun 2010: Improved Can Body Stock. Thinner. Downgauge further. Good strength. Solid solution strengthening, strain hardening. Controlled by alloying and thermomechanical processing. Strength limited by customer tooling performance. Galling control. Need for

  26. Improved Can Body Stock

    www.phase-trans.msm.cam.ac.uk/2002/havovy/text49.htm
    7 Jun 2010: Improved Can Body Stock. Thinner. Downgauge further. Good strength. Solid solution strengthening, strain hardening. Controlled by alloying and thermomechanical processing. Strength limited by customer tooling performance. Galling control. Need for

  27. Thermodynamic Modelling

    www.phase-trans.msm.cam.ac.uk/2002/robson/text21.htm
    7 Jun 2010: Thermodynamic Modelling. For any alloy system, set of conditions and configuration of the components there will be an associated free energy. Use computer models to calculate the free energy for complex systems (lots of elements) from data for

  28. Book reviewLaser Processing of Engineering Materials by John C. ...

    www.phase-trans.msm.cam.ac.uk/2005/p1236.pdf
    7 Jun 2010: It is a work. of scholarship which will undoubtedly serve us well for the.

  29. Components of the Creep Strength of Steel Welds

    www.phase-trans.msm.cam.ac.uk/2002/ananth/text0.htm
    7 Jun 2010: First page BackComponents of the Creep Strength of Steel Welds. Notes:.

  30. Summary

    www.phase-trans.msm.cam.ac.uk/2002/ananth/text23.htm
    7 Jun 2010: Continue Last pageSummary. HCM12A has its major strength contribution from vanadium and its nitride. Chromium has negligible contribution to creep strength; added for corrosion resistance. Copper in HCM12A improves toughness. All other precipitates

  31. Slide 2

    www.phase-trans.msm.cam.ac.uk/2002/web_high_res/img1.htm
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