Search Results

You are looking at 1 - 10 of 58 items :

  • "Fe-Mn Alloys" x
Clear All

Zeitschrift für Physikalische Chemie, 215, 11, 1389–1395 (2001)  by Oldenbourg Wissenschaftsverlag, München A Compton Scattering Study of Charge Transfer in Cr-Fe-Mn Alloys By L. Dobrzyński1, 2, ∗, A. Andrejczuk1 , 3, H. Reniewicz1 , K. Szymański1 and E. Żukowski1 1 Institute of Experimental Physics, University of Bialystok, ul. Lipowa 41, 15-424 Bialystok, Poland 2 The Soltan Institute for Nuclear Studies, 05-400 Otwock-Świerk, Poland 3 Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw, Poland Dedicated to Prof. Dr. Dr. h

Abstract

We calculate the electronic properties of austenite and martensite Fe-9%Mn alloys using the self consistent full-potential linearized-plane-wave method under the generalized gradient approximation full lattice relaxation. By minimizing total-energy, the lattice constants in their ground states were determined. We discuss the total energy dependence of the volume, and density of states (DOS).

.; Mantovani D.: Fe–Mn alloys for metallic biodegradable stents: Degradation and cell viability studies. Acta Biomaterialia 2010 , 6, 1852–1860. 15. Shreyas P.; Panda B.; Kumar R.: Materials Today: Proceedings Mechanical properties and microstructure of 316L- galvanized steel weld. Materials Today: Proceeding 2019 5–12. 16. Dehghan-Manshadi A.; St John D.H.; Dargusch M.S.: Tensile Properties and Fracture Behaviour of Biodegradable Iron-Manganese Scaffolds Produced by Powder Sintering. Materials 2019 ,12, 1572 17. Dargusch M.S.; Dehghan-Manshadi A.; Shahbazi M.; Venezuela

Abstract

X-ray photoelectron spectroscopy (XPS), electron microprobe microanalysis (EPMA), and secondary ion mass spectrometry (SIMS) have been used for analyzing the chemical composition in surface layers of iron-base alloys. Samples analyzed in this study were a ferritic Fe–Mn alloy annealed under low partial pressure of oxygen and an austenitic Fe–Mn–Si–Cr alloy annealed under vacuum. The XPS results showed that manganese was enriched and oxidized while iron was metallic in the surface layer of the Fe–Mn alloy annealed under a low partial pressure of oxygen. The EPMA results showed that manganese was depleted while chromium was enriched in the surface layer of the Fe–Mn–Si–Cr alloy annealed under vacuum. The SIMS depth profiles coupled with the EPMA results indicated that the enrichment of chromium in the surface layer improves the oxidation resistance of the alloy. The enrichment and depletion of manganese in the surface layer is discussed on the basis of the thermodynamic properties of the iron–manganese system.

Reference A bdulwahab M. 2008. Studies of the Mechanical Properties of Agehardened Al-Si-Fe-Mn Alloy . Australian Journal of Basic and Applied Sciences, Vol. 2 (4), 839-843. D as S. K. 2006. Designing Aluminum Alloys for a Recycling Friendly World. Materials Science Forum, Vol. 519-521, 1239-1244. D as K. S., G ren J. A. S. 2010. Aluminum Industry and Climate Change-Assessment and Responses . Jom, Vol. 62 (2), 27-31. G rosselle , F., T imelli G., B onollo F. 2010. Doe applied to microstructural and mechanical properties of Al-Si-Cu-Mg casting alloys

–1737. DOI: 10.1007/BF02817271. 4. Allain, S., Chateau, J. P., Dahmoun, D., & Bouaziz, O. (2004). Modeling of mechanical twinning in a high manganese content austenitic steel. Mater. Sci. Eng. A , 387/389 , 272–276. DOI: 10.1016/j.msea.2004.05.038. 5. Miodownik, A. P. (1998). The role of anti-ferromagnetism on gamma-epsilon transformation in Fe-Mn alloys. Z. Metallkunde , 89 , 840–847. 6. Schumann, H. (1972). Distribution of phases in Fe-Mn-C system after deformation. Neue Hutte , 17 , 605–609. 7. Frommeyer, G., Brux, U., & Neumann, P. (2003). Supra-ductile and high

steelmaking slag. The first step is to sulfurize the slag, pro- ducing a liquid sulfide phase (matte) without P. High-purity Fe-Mn alloys can then be made by desulfurizing the matte. However, to our knowledge, there have been no reports to date concerning the sulfurization of P and Mn contained in molten slag. Therefore, knowledge of the distribution of Fe, Mn and P between the matte and the molten slag is re- quired to determine the feasibility of this process. In this study, the equilibrium distributions of Mn, Fe, Ca and P be- tween a FeS-MnS matte and FeO-MnO-SiO2-MgO

.3139/105.110308 15. Bolton , J. ; Petty , E. ; Allen , G. : The mechanical properties of a-phase low carbon Fe-Mn alloys . Metall. Mater. Trans. B 2 ( 1971 ), pp. 2915 – 2923 , 10.1007/BF02813271 Bolton , J. ; Petty , E. ; Allen , G. : The mechanical properties of a-phase low carbon Fe-Mn alloys . Metall. Mater. Trans. B 2 ( 1971 ), pp. 2915 – 2923 , 10.1007/BF02813271 16. Song , S. ; Faulkner , R. ; Flewitt , P. : Quenching and tempering-induced molybdenum segregation to grain boundaries in a 2.25Cr–1Mo steel . Mater. Sci. Eng. A 281 ( 2000 ), pp. 23

.01.031 Dunstan Pedro Oliver Thermochimica Acta Thermochimica 00406031 Thermochemistry of adducts of some bivalent transition metal bromides with β-picoline N-oxide 10 2004 1 409 19 10.1016/S0040-6031(03)00333-2 Dunstan Pedro Oliver Thermochimica Acta Thermochimica 00406031 Thermochemistry of adducts of some transition metals(II) bromides with pyridine N-oxide 11 2003 2 34 209 10.1007/s11663-003-0008-y Witusiewicz Victor T. Sommer Ferdinand Mittemeijer Eric J. Metallurgical and Materials Transactions B Metall Mater Trans B 15431916 Enthalpy of formation and heat capacity of Fe-Mn

, shape memory al- loys, and a rather inexpensive damping material [1 – 4]. In considering the engineering materials, the main problem with Fe-Mn alloys is that they have a poor wear-resistance and microhardness [1, 5, 6]. Coating with certain compounds is one way of improving the hardness, wear resistance, fracture and yield strength of such material [7, 8]. One of the coating techniques is boronizing, a thermo-chemical surface treatment in which boron atoms diffuse into the surface of the work piece to form hard borides with the base material. It is a prominent choice