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Showing 1 to 20 of 545 for “"Steels"”.
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Hot ductility of steels
… hot tensile test has been used for a variety of steels, to investigate the influence of such factors as inclusions, precipitation, phase transformation and grain size on hot ductility. Tests were performed in the temperature range 700-1000 °C and at a strain .4 _2 1 rates of (10 —10 S ), …
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High speed tool steels
Open Restriction set for Item 97489 on 2017-01-24T22:17:35Z with date null by kappleg2@illinois.edu.
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Tempering of chromium steels
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Metallurgy, 1950
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Nitriding of aluminium-containing steels
… behaviour of some aluminium-containing low alloy steels with and without chromium. The main aim of the study has been to establish the relationship between prior heat treatment and nitriding process variables on the nitriding response of the aluminium containing steels. Emphasis was placed on …
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Hot ductility of TWIP steels
… fraction in deep drawn products. However these steels are difficult to continuous cast and cracking can occur at the slab surface. Therefore it becomes very important to gain an understanding of the cause of this cracking, in order to prevent their occurrence. To assess the likelihood of the …
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Sliding wear of nitrided steels
… ferritic nitrocarburized BS970,905M39 (EN41B) steels was investigated systematically from an engineering point of view. Commercial nitriding processes were employed, and the wear studies were carried out using a pin-on-disc machine over a wide range of sliding speeds and applied loads. The worn …
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Microstructural degradation of bearing steels
… aspects of fatigue damage in bearings steels through critical experiments, in particular whether damage in the form of cracks precedes hard “white-etching matter" formation, which is carbon supersaturated nanoscaled ferrite. Heat treatments have been designed to create four different …
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Niobium in Microalloyed Rail Steels
Rail steels rely primarily on possessing adequate wear and rolling contact fatigue resistance. These properties, together with the toughness, can in principle be optimized by implementing thermomechanical processing assisted by controlled niobium additions. The purpose of the current work is to …
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Fatigue properties of rail steels
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1983.
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The determination of boron in steels
… determination of boron in mild and low alloy steels containing 0.0005 to 0.010%B has been developed based on the reaction of 1-(arsenophenylazo)-2-hydroxynaphthalene-3, 6-disulphonic acid trisodium salt (Thoron) with boric acid in sulphuric acid. (90% v/v) to produce a fluorescent complex. The …
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Fatigue in low pressure carbonitrided steels
… is in contrast to some studies on carburized steels where more significant transformation occurs. The presence of NMTPs and tensile residual stress could have occurred due to a low cooling rate during pressurized gas quenching. Residual stress profiles were very similar for all the alloys. …
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Modelling of Simultaneous Transformations in Steels
The microstructure of a steel is often developed by solid-state transformation from austenite. The major transformation products are allotriomorphic ferrite, pearlite, Widmanstatten ferrite, bainite and martensite, differentiated by morphological features, and their nucleation and growth …
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Sulfide inclusions in electroslag remelted steels.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1979.
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Transformation toughening of metastable austenitic steels
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1984.
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