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  1. No Access

    Article

    An Investigation of the Growth Mechanism of Scale Formed on Chromium Containing Low Amounts of Sulfur, Chlorine, and Phosphorus

    The growth mechanism of the flat and adherent scale formed at 900°C in 0.1 atm oxygen on chromium, which contained 1 ppm (wt) sulfur, 0.08 ppm (wt) chlorine, and 0.2 ppm (wt) phosphorus, has been found to be v...

    W. Dong, H. E. Bishop, D. Johnson, D. G. Lees, G. W. Lorimer in Oxidation of Metals (2000)

  2. No Access

    Chapter

    Microstructure/Property Relationships in Two Magnesium-Rare Earth Alloys

    The new generation of zirconium-refined magnesium-rare earth alloys have assumed considerable commercial importance because of their light weight, high specific strength, good castability, excellent dam** re...

    G. W. Lorimer, R. A. Khosroshahi, R. Pilkington in Advanced Light Alloys and Composites (1998)

  3. No Access

    Chapter

    Thermomechanical Processing of Aluminium Alloys

    Over 50% of the aluminium alloys produced by industry undergo subsequent mechanical working and annealing (thermomechanical processing or TMP), in order to produce a fmished or semi-fmished product. This type ...

    F. J. Humphreys, G. W. Lorimer in Advanced Light Alloys and Composites (1998)

  4. No Access

    Article

    Pinning of subgrain boundaries by Al3Zr dispersoids during annealing in Al-Li commercial alloys

    A. WAHEED, G. W. LORIMER in Journal of Materials Science Letters (1997)

  5. No Access

    Article

    Dispersoids in Al–Li AA8090 series alloys

    Chemical composition data of Al3Zr-type dispersoids obtained using the EDAX attached to the transmission electron microscopes in three commercial AA8090 series Al–Li alloys demonstrated the incorporation of Ti...

    A Waheed, G. W Lorimer in Journal of Materials Science (1997)

  6. No Access

    Article

    Quantitative Analysis of Segregation to Grain Boundaries in Steels

    Grain boundary segregation of phosphorous in model reactor steels has been measured using EDX Spectroscopy in the FEG-STEM. The results have been compared with Auger spectroscopy measurements made on similar m...

    A. J. Garratt-Reed, G. Cliff, G. W. Lorimer… in MRS Online Proceedings Library (1996)

  7. No Access

    Article

    Evaluation of diffusion bonds formed between superplastic sheet materials

    Diffusion bonds produced in microduplex titanium and stainless steel sheet materials for various bonding conditions have been evaluated using a range of techniques. These include light and scanning electron mi...

    Z. C. Wang, N. Ridley, G. W. Lorimer, D. Knauss… in Journal of Materials Science (1996)

  8. No Access

    Article

    The relationship between the microstructure and microwave dielectric properties of zirconium titanate ceramics

    Zirconium titanate (ZrTiO4) ceramics have been prepared by the mixed oxide route using small additions of ZnO, Y2O3 or CuO. Specimens were sintered mainly at 1400 °C and cooled at various rates: water-quench, air...

    F. Azough, R. Freer, C. -L. Wang, G. W. Lorimer in Journal of Materials Science (1996)

  9. No Access

    Article

    Sulfur segregation during the high-temperature oxidation of chromium

    A TEM and STEM examination has been carried out of cross-sectioned specimens of convoluted chromia scale formed by oxidizing chromium at 950° C. Sulfur was detected at the oxide/metal interface and the oxide g...

    P. Fox, D. G. Lees, G. W. Lorimer in Oxidation of Metals (1991)

  10. No Access

    Article

    The analysis of bainitic plates in Cu-Zn and Cr-Ni

    Analytical electron microscopy of thin specimens has been used to determine the compositions of “bainitic” α1 plates in a Cu-39.3 wt pet Zn and γl plates in a Cr-33 wt pet Ni alloy. The analytical results clearly...

    G. Cliff, F. Hasan, G. W. Lorimer, M. Kikuchi in Metallurgical Transactions A (1990)

  11. No Access

    Article

    Microstructure and its development in Cu-Al-Ni alloys

    The microstructure of as-cast Cu-AI-Ni alloys, based on copper containing 9 to 10 wt pct Al and up to 5 wt pct Ni, has been examined. The development of the microstructure on continuous cooling has also been i...

    Y. S. Sun, G. W. Lorimer, N. Ridley in Metallurgical Transactions A (1990)

  12. No Access

    Chapter

    Effect of Microstructure on the short crack growth in Al-2024-UA and Al-8090-UA

    The purpose of this study was to investigate the effect of microstructure on the short fatigue crack growth rates of a range of aluminium alloys. The two alloys chosen were Al-2024 based on Al-Cu-Mg and Al-809...

    D. Downham, G. W. Lorimer, R. Pilkington in Constitutive Laws of Plastic Deformation a… (1990)

  13. No Access

    Article

    Microstructure of high-tensile strength brasses containing silicon and manganese

    The morphology, crystallography, chemistry, and distribution of the phases in commercial high-tensile strength brasses containing manganese and silicon with compositions conforming to U.S.A. Specifications C67...

    Y. S. Sun, G. W. Lorimer, N. Ridley in Metallurgical Transactions A (1989)

  14. No Access

    Article

    X-ray microanalysis in the transmission electron microscope

    The technique of x-ray microanalysis of thin specimens in the transmission electron microscope is well established. Quantitative analyses can be obtained by converting observed x-ray intensity ratios into weig...

    G W Lorimer in Bulletin of Materials Science (1984)

  15. No Access

    Article

    Microstructural development in complex nickel-aluminum bronzes

    The development of microstructure in complex nickel-aluminum bronzes of nominal composition Cu-10 wt pet Al-5 wt pct Ni-5 wt pct Fe, during continuous cooling from temperatures approaching the solidus, has bee...

    A. Jahanafrooz Graduate Student, F. Hasan, G. W. Lorimer… in Metallurgical Transactions A (1983)

  16. No Access

    Article

    The morphology, crystallography, and chemistry of phases in as-cast nickel-aluminum bronze

    The morphology, crystallography, and composition of the phases present in as-cast nickel-aluminum bronze of nominal composition copper-10 wt pct aluminum-5 wt pct nickel-5 wt pct iron have been investigated us...

    F. Hasan, A. Jahanafrooz, G. W. Lorimer, N. Ridley in Metallurgical Transactions A (1982)

  17. No Access

    Article

    Pearlite growth kinetics and partitioning in a Cr−Mn eutectoid steel

    The partitioning of manganese and chromium between cementite and ferrite during the austenite-pearlite transformation in a 1 pct Mn, 1 pct Cr eutectoid steel has been examined using analytical electron microsc...

    S. A. Al-Salman, G. W. Lorimer, N. Ridley in Metallurgical Transactions A (1979)

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    Article

    Authors’ reply

    P. E. Marth, H. I. Aaronson, G. W. Lorimer, T. L. Bartel… in Metallurgical Transactions A (1978)

  19. No Access

    Article

    Cessation of the dislocation splitting mechanism for γ’ Al-Ag formation above a critical temperature

    H. I. Aaronson, K. C. Russell, G. W. Lorimer in Metallurgical Transactions A (1977)

  20. No Access

    Article

    Application of heterogeneous nucleation theory to precipitate nucleation at GP zones

    The accelerated nucleation of precipitates at GP zones is explained using heterogeneous nucleation theory. Nucleation at zone : matrix boundaries is encouraged by several factors: 1) the chemical interfacial e...

    P. E. Marth, H. I. Aaronson, G. W. Lorimer, T. L. Bartel… in Metallurgical Transactions A (1976)

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