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164. Precipitation Behaviour of a Complex Steel

Author

Leitner, H., primary, Bischof, M., additional, Clemens, H., additional, Erlach, S., additional, Sonderegger, B., additional, Kozeschnik, E., additional, Svoboda, J., additional, and Fischer, F. D., additional

Published
2006
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183. Characterization of the behavior under impact loading of a maraging steel strengthened by nano-precipitates

Author

Lach, E., Redjaïmia, A., Leitner, H., Clemens, H., Lach, E., Redjaïmia, A., Leitner, H., and Clemens, H.

Abstract

Nanometer-sized precipitates are responsible for the high strength of steel alloys well known as maraging steels. The term maraging relates to aging reactions in very low-carbon martensitic steels. Due to precipitation hardening 0.2% yield stress values of up to 2.4 GPa can be achieved. The class of stainless maraging steels exhibits an excellent combination of very high strength and hardness, ductility and toughness, combined with good corrosion resistance. In many applications like crash worthiness or ballistic protection the materials are loaded at high strain-rates. The most important characteristic of material behavior under dynamic load is the dynamic yield stress. In this work compression tests had been conducted at strain-rates in the order of 5 x 10- 3s- 1up to 3 x 103s- 1to study the materials behaviour. Additionally high dynamic compression tests had been performed in the temperature range from -40°C up to 300°C.

Published
2006
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188. Cesarean Delivery After Nonmedically Indicated Induction of Labor: A Population-based Study Using Different Definitions of Expectant Management

Author

Zenzmaier, C., Pfeifer, B., Leitner, H., and König-Bachmann, M.

Abstract

(Acta Obstet Gynecol Scand. 2021;100:220–228)Induction of labor (IOL) has been associated with an increased risk of cesarean delivery (CD), when compared with spontaneous onset of labor. But when compared with expectant management, randomized controlled trials (RCTs) and observational studies have found that nonmedically indicated or “elective” IOL is associated with fewer CD. Expectant management is typically defined as all births at a later gestation, usually >41 weeks, regardless of mode of delivery. However, this definition may bias clinicians to favor IOL earlier or at full term when considering the risk of expectant management in the short term, or until the next appointment when IOL may be reconsidered. The aim of this study was to evaluate the risk of CD after elective IOL using the 2 definitions of expectant management.

Published
2021
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195. Treatment results in males with breast cancer

Author

Pakisch, B., primary, Stoeger, H., additional, Poschauko, H., additional, Samonigg, H., additional, Bauernhofer, T., additional, Pojer, E., additional, Leitner, H., additional, Stuecklschweiger, G., additional, Peichl, K. H., additional, Quehenberger, F., additional, and Hackl, A., additional

Published
1995
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