Search Results - "Speer, G."

Materials for Automotive Lightweighting by Taub, Alan, De Moor, Emmanuel, Luo, Alan, Matlock, David K, Speer, John G, Vaidya, Uday

“…Reducing the weight of automobiles is a major contributor to increased fuel economy. The baseline materials for vehicle construction, low-carbon steel and cast…”
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Microstructural characteristics and mechanical properties of the Al–Si coating on press hardened 22MnB5 steel by Cho, Lawrence, Golem, Lindsay, Seo, Eun Jung, Bhattacharya, Diptak, Speer, John G., Findley, Kip O.

“…The microstructural characteristics and mechanical properties of the phases in the substrate-coating interdiffusion layer of an Al–10%Si coated 22MnB5 press…”
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Genesis of the Antarctic Slope Current in West Antarctica by Thompson, Andrew F., Speer, Kevin G., Schulze Chretien, Lena M.

“…The stability of the West Antarctic Ice Sheet (WAIS) depends on ocean heat transport toward its base and remains a source of uncertainty in sea level rise…”
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Zonally asymmetric response of the Southern Ocean mixed-layer depth to the Southern Annular Mode by Sallée, J. B, Speer, K. G, Rintoul, S. R

“…Interactions between the atmosphere and ocean are mediated by the mixed layer at the ocean surface. The depth of this layer is determined by wind forcing and…”
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Influence of Temperature and Grain Size on Austenite Stability in Medium Manganese Steels by Zhang, Yulong, Wang, Li, Findley, Kip O., Speer, John G.

“…With an aim to elucidate the influence of temperature and grain size on austenite stability, a commercial cold-rolled 7Mn steel was annealed at 893 K (620 °C)…”
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Quantitative measurement of deformation-induced martensite in 304 stainless steel by X-ray diffraction by De, Amar K., Murdock, David C., Mataya, Martin C., Speer, John G., Matlock, David K.

“…A single X-ray diffraction scan is effectively used for identifying and evaluating deformation-induced transformation in 304 austenitic stainless steel…”
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Analysis of Microstructure Evolution in Quenching and Partitioning Automotive Sheet Steel by Speer, John G., De Moor, E., Findley, K. O., Matlock, D. K., De Cooman, B. C., Edmonds, D. V.

“…Extensive research efforts are underway globally to develop new steel microstructure concepts for high-strength sheet products, driven largely by the need for…”
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Influence of interface mobility on the evolution of austenite–martensite grain assemblies during annealing by Santofimia, M.J., Speer, J.G., Clarke, A.J., Zhao, L., Sietsma, J.

“…The quenching and partitioning (Q&P) process is a new heat treatment for the creation of advanced high-strength steels. This treatment consists of an initial…”
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Combined Intercritical Annealing and Q&P Processing of Medium Mn Steel by De Cooman, Bruno C., Lee, Seon Jong, Shin, Sunmi, Seo, Eun Jung, Speer, John G.

“…The microstructure and mechanical properties of intercritically annealed medium Mn steel are dependent on the selection of the intercritical annealing (IA)…”
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Double twist torsion testing to determine the non recrystallization temperature by Ballard, Trevor J., Speer, John G., Findley, Kip O., De Moor, Emmanuel

“…A double-twist torsion testing technique has been developed using a 316 stainless steel as an exemplar material to experimentally assess recrystallization…”
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Overview of processing, microstructure and mechanical properties of ultrafine grained bcc steels by Song, R., Ponge, D., Raabe, D., Speer, J.G., Matlock, D.K.

“…Ultrafine grained steels with grain sizes below about 1 μm offer the prospect of high strength and high toughness with traditional steel compositions. These…”
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Retained Austenite Stabilization Through Solute Partitioning During Intercritical Annealing in C-, Mn-, Al-, Si-, and Cr-Alloyed Steels by Kang, Singon, De Moor, Emmanuel, Speer, John G.

“…Retained austenite fractions, predicted to be stable at room temperature assuming ortho-equilibrium solute distribution during intercritical annealing, were…”
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Rapid Thermal Processing to Enhance Steel Toughness by Judge, V. K., Speer, J. G., Clarke, K. D., Findley, K. O., Clarke, A. J.

“…Quenching and Tempering (Q&T) has been utilized for decades to alter steel mechanical properties, particularly strength and toughness. While tempering…”
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Equilibrium solubility products of molybdenum carbide and tungsten carbide in iron by Pavlina, Erik J., Speer, John G., Van Tyne, Chester J.

“…Solubility products for molybdenum carbide and tungsten carbide are absent from the literature despite their importance in secondary hardening steels and in…”
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Carbon partitioning to austenite from martensite or bainite during the quench and partition (Q&P) process: A critical assessment by Clarke, A.J., Speer, J.G., Miller, M.K., Hackenberg, R.E., Edmonds, D.V., Matlock, D.K., Rizzo, F.C., Clarke, K.D., De Moor, E.

“…The goal of the quench and partition (Q&P) process for steel heat treatment is to enrich austenite with carbon during a partitioning treatment after initial…”
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Hydrogen Effects in Prestrained Transformation Induced Plasticity Steel by Ronevich, J. A., De Cooman, B. C., Speer, J. G., De Moor, E., Matlock, D. K.

“…Thermal desorption analysis (TDA) was performed on laboratory heat-treated transformation induced plasticity ( TRIP) steel with 14.5 pct retained austenite…”
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Effect of Retained Austenite Stabilized via Quench and Partitioning on the Strain Hardening of Martensitic Steels by De Moor, E., Lacroix, S., Clarke, A.J., Penning, J., Speer, J.G.

“…A novel heat-treating process, quench and partitioning (Q&P), has been proposed as a fundamentally new way to produce martensitic microstructures containing…”
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Quenching and Partitioning Steel Heat Treatment by Wang, Li, Speer, John G.

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Influence of carbon partitioning kinetics on final austenite fraction during quenching and partitioning by Clarke, A.J., Speer, J.G., Matlock, D.K., Rizzo, F.C., Edmonds, D.V., Santofimia, M.J.

“…The quenching and partitioning (Q&P) process is a two-stage heat-treatment procedure proposed for producing steel microstructures that contain carbon-enriched…”
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Effects of Short-Time Tempering on Impact Toughness, Strength, and Phase Evolution of 4340 Steel Within the Tempered Martensite Embrittlement Regime by Euser, V. K., Williamson, D. L., Clarke, K. D., Findley, K. O., Speer, J. G., Clarke, A. J.

“…While tempering reactions under furnace conditions have been extensively studied, short-time tempering at higher temperatures, as might apply to induction…”
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