| Rolling Contact Fatigue Studies of CPM Steels M-50, REX 45, and T-15 |
93 |
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| Authors:
V. Weiss; L. Ecker; T. Vedder; R. M. Middleton; M. G. H. Wells; SYRACUSE UNIV NY
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 | Rolling Contact fatigue tests have been conducted on 3 powder metallurgy (CPM) steels, M-50, T-15, and REX-45, and on ingot melted M-50 VIM/ VAR at Hertzian contact stresses between 786 and 853 ksi (5.42 and 5.90 GPa). Two test methods, "wheel-on-cylinder" and "3-ball-on-rod", were used. The data indicate that CPM steels are competitive for the conditions tested, with T-15 showing a life range which is almost one order of magnitude ... |
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| The Effect of TiN Coatings on the Rolling Contact Fatigue Behavior of M50 Bearing Steel |
DEC 1992 |
46 pages |
| Authors:
R. M. Middleton; P. J. Huang; M. G. Wells; R. A. Kant; ARMY RESEARCH LAB WATERTOWN MA MATERIALS DIRECTORATE
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 | There is a continuing requirement for improved bearing performance for both commercial and military applications. Service temperatures are increasing steadily due to increased power requirements and corrosion of components remains a major concern as well, particularly for bearings in military systems. In our ongoing study, a number of different coatings were applied to VIM-VAR M50 bearing steel to improve both corrosion resist ance and rolling contact fatigue behavior. This report ... |
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| Transformation Characteristics of Transage Titanium 129 |
82 |
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| Authors:
R. M. Middleton; C. R. Hickey Jr.; ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA
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| Transage 129 specimens 1.6 mm thick were heated to 745 C for one hour and air cooled, furnace cooled or ice-brine quenched to determine the crystal structure by x-ray diffraction, scanning and transmission electron microscopy. Some samples were cold worked from 5 to 70% to determine the affect on strain- induced martensite. |
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| Stress Assisted Transformation in Ti-10V-2Fe-3Al. |
FEB 1980 |
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| Authors:
T. W. Duerig; R. M. Middleton; G. T. Terlinde; J. C. Williams; CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF METALLURGY AND MATERIALS SCIENCE
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| A stress assisted, or stress-induced reaction, is reported in the beta-Ti alloy - Ti-10V-2Fe-3Al. Both X-ray diffraction and electron microscopy are used to identify the products. The results indicate the product to be predominantly orthorhombic martensite (alpha double prime), with some mechanical twins. The structural nature of the beta yields alpha double prime transformation is discussed. The effects of the beta yields alpha double prime reaction upon mechanical properties is ... |
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| The Debye Temperature of Iron-Manganese Solid Solution Alloys |
JUL 62 |
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| Authors:
C. P. Gazzara; R. M. Middleton; WATERTOWN ARSENAL LABS MA
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