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Showing 1 to 20 of 55 for “"High strength steel"”.
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Hydrogen degradation of high strength steel weldments
Thesis (Ocean. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1993, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science & Engineering, 1993.
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Hydrogen assisted cracking of high strength steel welds
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1987.
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Diagonally-Reinforced Concrete Coupling Beams with High-Strength Steel Bars
The use of high-strength steel in diagonally reinforced coupling beams was investigated with the aims of minimizing reinforcement congestion and increasing the maximum permissible design shear stress without compromising behavior under large displacement reversals. Five large-scale diagonally …
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Low Cycle Fatigue Strength Investigation of a High Strength Steel
Made available in DSpace on 2014-12-10T17:25:38Z (GMT). No. of bitstreams: 1 6706624.pdf: 1482203 bytes, checksum: 775991bf66675a36162e753a7c7e31f9 (MD5) Previous issue date: 1966
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Shear fatigue of adhesively bonded frictional interfaces in high-strength steel
… for the design of bonded/bolted hybrid joints in high-strength steel plates subjected to cyclic shear loading. Hybrid joints can have improved fatigue endurance as compared to welded connections of similar geometries but, thus far, adequate research data has not been available. A procedure, …
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Response of high-strength steel reinforced concrete structures to simulated earthquakes
… demands, substituting smaller amounts of high-strength steel for conventional steel reinforcement can help reduce reinforcement congestion and placement costs while keeping strength unchanged.</p> <p>Provided cross-sectional dimensions remain unchanged, reducing the amount of longitudinal …
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ADVANCED HIGH STRENGTH STEEL THROUGH PARAEQUILIBRIUM CARBON PARTITIONING AND AUSTENITE STABILIZATION
… in quenched and partitioned (QP) 0.3C-4.0Mn steels subjected to dual stabilization heat treatments (DSHT). The temperature of the second quench in the DSHT process successfully played an essential role in the retained austenite contents at carbon partitioning temperatures above 450¿¿C. A …
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Experimental and theoretical studies of corrosion fatigue in a high strength steel.
… theoretical aspects of corrosion fatigue in a high strength steel. Fatigue tests were conducted under fully reversed shear loading in an aerated 0.6M NaC1 solution at pH6, for a silico-manganese spring steel (BS251A58) having a yield strength around 1400 MPa. The fatigue crack evolution process …
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Mechanical properties and cyclic behavior of high strength steel after fire exposure
<p>Behavior of High Strength Steels (HSS) after exposure to high temperature has become an important research topic in recent years. A number of studies have demonstrated that different grades of HSS can exhibit noticeable differences in their mechanical properties under and after fire exposure, …
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Effect of Microstructure on Mechanical Properties of High Strength Steel Weld Metals
… the microstructure and mechanical properties of high strength steel weld metals have been studied. Based on neural network modelling, weld metals were produced using shielded metal arc welding with nickel at 7 or 9 wt. %, manganese at 2 or 0.5 wt. % while carbon was varied between 0.03 and 0.11 …
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Desulfurization of vacuum induction melted high strength steel: relation to mechanical properties
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1961.
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The effect of hydrogen on the fatigue life of high strength steel
Torsional fatigue tests were conducted on 4370 steel oil quenched and tempered at 1000° F in (l) the uncharged state, (2) the hydrogen charged state, and (3) in a hydrogen environment. The tests were conducted on both smooth (K<sub>t</sub> = l.l) and V-notch (K<sub>t</sub> = 3.8) test specimens. A …
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The effect of microstructure on the fracture toughness of a high strength steel
… fracture toughness has been determined for a high strength low-alloy steel, En 25. 0ptical, transmission and scanning electron microscopy were used to characterize the structure and morphology while fracture toughness, notched impact and tensile tests were used to determine the mechanical …
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Material substitution in electric vehicle manufacturing : comparing advanced high strength steel and aluminum
In electric vehicle production, the high cost of battery manufacture motivates investment in energy efficient and lightweight vehicle designs. A common lightweighting strategy is to substitute Advanced High Strength Steel (AHSS) or aluminum in place of traditional mild steel. Aluminum is a lighter …
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Synergistic precipitation strengthening effect of copper and niobium in high strength steel weld metal
Includes bibliographical references (pages 155-163).
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High strength steel for seismic resistance of beam-to-column connections: novel metal investigation
The use of high strength steels (HSS) has been gradually increasing since 1930s. However, research and knowledge about HSS lagged, preventing its widespread applicability in seismic resistance structures. Due to the lack of sufficient theoretical and experimental studies regarding ductility, …
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Experimental characterization and modeling of the plastic behavior of a thirdgeneration advanced high strength steel sheet
The third generation of the advanced highstrength steels (AHSS) has attracted the automotive industry attention owing to its good compromise between the formability and production cost. The current development stage of these steels so far has few products available on the market, as well as little …
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