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| 1 | Solidification Studies of 3003 Aluminium Alloys with Cu and Zr Additions显示文摘The effects of Cu and Zr additions, on the microstructure formation, precipitation and ingot cracking, in commercial 3003 Al alloys have been studied. The investigation was carried out by characterizing the grain structure in DC-cast rolling ingots, and studying the solidification microstructure of Bridgman directionally solidified samples. To better understand the influence of the different Cu and Zr contents on the phase precipitations, differential thermal analysis (DTA) experiments were performed. Results from the ingot microstructure analysis show that in commercial alloys with relatively high contents of Cu and Zr, no significant differences in measured grain sizes compared to conventional 3003 Al alloys could be found. However, only Zr containing alloys exhibited significantly larger grain sizes. Increased grain refiner and/or titanium additions could compensate for the negative effects on nucleation normally following Zr alloying. Different types of precipitates were observed. Based on DTA experiments, increased Cu and Zr contents resulted in the formation of Al2Cu phase, and increased solidification range. It was also found that increased Mn content favors an early precipitation of Al6(Mn,Fe) giving relatively coarse precipitates. It was concluded that the Cu alloying has a detrimental effect on hot tearing. | Majed M.R.Jaradeh Torbjorn Carlberg | 2011 | Journal of Materials Science & Technology2011，27，7： | 9 |
| 2 | Surface Graphite Degeneration in Ductile Iron Castings for Resin Molds显示文摘The objective of this paper is to review the factors influencing the formation of degenerated graph- ite layers on the surfaces of ductile iron castings for chemical resins-acid molding and core-making systems and how to reduce this defect. In the resin mold technique the sulphur in the P-toluol sulphonic acid (PTSA), usually used as the hardener, has been identified as one factor causing graphite degeneration at the metal- mold interface. Less than 0.15% S in the mold (or even less than 0.07% S) can reduce the surface layer depth. Oxygen may also have an effect, especially for sulphur containing systems with turbulent flows in the mold, water-bearing no-bake binder systems, Mg-Silica reactions, or dross formation conditions. Despite the lower level of nitrogen in the iron melt after magnesium treatment (less than 90 ppm), nitrogen bearing res- ins have a profound effect on the frequency and severity of surface pinholes, but a limited influence on sur- face graphite degeneration. | Iulian Riposan Mihai Chisamera Stelian Stan Torbjorn Skaland | 2008 | Tsinghua Science and Technology2008，13，2： | 2 |
| 3 | High Plasminogen Activator Inhibitor and Tissue Plasminogen Activator Levels in Plasma Precede a First Acute Myocardial Infarction in Both Men and Women: Evidence for the Fibrinolytic System as an Independent Primary Risk Factor显示文摘 | Anna M. Thogersen Jan-Hakan Jansson Kurt Boman Torbjorn K. Nilsson Lars Weinehall Fritz Huhtasaari Goran Hallmans | 1998 | Circulation1998，，21： | 2 |
| 4 | Increased P53 mutation frequency during tumor progression-results from a breast cancer cohort显示文摘 | Torbjorn N Sigrid K Gunilla K | 2001 | Cancer Res2001，5，61： | 1 |
| 5 | Evaluation of current control methods for wind turbines using doubly-fed induction machines显示文摘 | Petersson Andreas Harnefor Lennarts Thiringer Torbjorn | 2005 | IEEE Trans on Power Electronics2005，20，1： | 1 |
| 6 | Fluvial response to climate and sea-level change:Anvene andlook forward 显示文摘 | Michael D B Torbjorne T R | 2000 | Sedimentology2000，，47： | 1 |
| 7 | Two-Dimensional CFD-Analysis of Micro-Patterned Surfaces in Hydrodynamic Lubrication显示文摘 | Fredrik Sahlin Sergei B Glavatskih Torbjorn Almqvist | 2005 | Journal of Tribology2005，127，： | 1 |
| 8 | ASSOCIATION OF FIBROBLAST GROWTH FACTOR (FGF)-23 LEVELS WITH RISK OF CARDIOVASCULAR EVENTS IN PATIENTS WITH STABLE CORONARY ARTERY DISEASE显示文摘 | Jacob A. Udell Thomas O'Donnell David Morrow Petr Jarolim Torbjorn Omland Sarah Sloan Marc Pfeffer Eugene Braunwald Marc Sabatine | 2012 | Journal of the American College of Cardiology2012，，13： | 1 |
| 9 | Biomechanical aspects of prosthetic treatment of structurally compromised teeth显示文摘 | Torbjorner A Fransson B | 2004 | Int J Prosthodont2004，17，2： | 1 |
| 10 | Adaptive FEA of wave propagation induced by high-speed trains显示文摘 | Torbjorn E Martin X D | | 0，，12： | 1 |
| 11 | A stationary wavelet-domain wiener filter for correlated speckle显示文摘 | Stian S Torbjorn E | 2008 | IEEE Transactions on Geoscience and Remote Sensing2008，46，4： | 1 |
| 12 | Numerical simulation of flow around a smooth circular cylinder at very high Reynolds numbers显示文摘 | Muk C O Torbjorn U Lars E H | 2009 | Marine Structures2009，22，2： | 1 |
| 13 | Method for measuring the reactivity of absorbents for wet flue gas desulfurization显示文摘 | Ahlbeck Jarl Engman Torbjorn Falten Stefan Vihma Maija | 1993 | Chemical Engineering Science1993，48，20： | 1 |
| 14 | Hyponatremia iidelderly patients treated with desmopressinfor nocturia:a review of a case series显示文摘 | TORBJORN C ELISABET E MORTEN A | 2005 | Eur J Clin Pharmacol2005，61，： | 1 |
| 15 | Restructur- ing the Chinese seafood industry, global challenges and policy im- plications显示文摘 | Knut Bjorn Lindkvist Torbjorn Trondsen Jinghua Xie | 2008 | Marine Policy2008，32，： | 1 |
| 16 | Method developed for quantitative analysis of inclusions in solidified aluminum ingots显示文摘 | Majed M Jaradeh C Torbjorn C | | 0，，： | 1 |
| 17 | Effects of dietary anthocyanins on tocopherols and lipids in rats 显示文摘 | Jan F Afar K Torbjorn L | 2002 | J Agric Food Chem2002，50，25： | 1 |
| 18 | Neurohor- monal activation rapidly decreases after intravenous therapy with diuretics and vasodilators for class IV heart failure显示文摘 | WENDY J TORBJORN O CHRISTIAN H | 2002 | Journal of the American College of Cardiology2002，39，4： | 1 |
| 19 | Photoelectrochemical study of sputtered nitrogen-doped titanium dioxide thin films in aqueous electrolyte 显示文摘 | Torbjorn Lindgren Jun Lu Hoel Anders | 2004 | Solar Energy Materials and Solar Cells2004，84，14： | 1 |
| 20 | Urban air pollution and mortality in a cohort of norwegian men显示文摘 | Per Nafstad Lise Lund Haheim Torbjorn Wisloff | 2004 | Environ Health Perspect2004，112，12： | 1 |
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