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Density, Microstructure, Strength and Fractography of Spark Plasma and Conventionally Sintered Mn Steels

REFERENCES [1] Hryha, E., Nyborg, L., Dudrova, E., Bengtsson, S. In: Proc. Euro PM2009 - Sintered Steels 1 – Composition. International powder metallurgy congress et exhibition. Copenhagen, 12.-14.10.2009. Vol. 1. Shrewsbury: EPMA, 2009, p. 17 [2] Taylor, GF.: US Patent No. 1,896,854, 1933 [3] Taylor, GF.: US Patent No. 1,896,853, 1933 [4] Crèmer, GD.: US Patent No. 2,355,954, 1944 [5] Lenel, VF.: JOM – the Journal of The Minerals, Metals & Materials Society (TMS), Trans. AIME, vol. 7, 1955, no. 1, p. 158 [6] Song, X., Liu, X

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Applying “Spark Plasma Sintering” Technology to Enhance the Resistance to Contact Fatigue of Sintered Steel Based on Astaloy CRL

Abstract

The article deals with the effect of porosity on the contact fatigue of sintered material type Astaloy CrL with 0.3 and 0.4% C. Sets of samples were used with densities beginning from the value of 7000 kg.m−3 to the value of almost 7859 kg.m−3 which represents almost zero porosity (compact material). It has been found out that the increase of compacting pressure applied simultaneously with temperature results in the reduction of porosity from the value of 9.10% to 0.0005% and increase in hardness from 145 to 193 HV10, depending on the carbon content. Logically there is also an increase in the fatigue life by the contact fatigue tests for the value of 50×106 cycles from the value of 900 MPa to 1150 MPa for samples with 0.3% of C and from 900 MPa to 1300 MPa for samples with 0.4% C. These investigations were also carried out in the past, but to achieve the reduction of porosity, different technonologies were used at each level such as double pressing, hot pressing, saturation, hot forging, etc. In this case, the single technology of “spark plasma sintering” making use of compacting at high temperatures is capable to continuously reduce porosity to zero.

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Research on the Properties of Co-Tic and Ni-Tic Hip-Sintered Alloys

on Ni/TiC composites by direct laser fabrication, Materials & Design , Vol. 30, Iss. 4. 1409–1412. 30. Zhang X.-H., Han J.-C., Du S.-Y., Wood J.V. (2000). Microstructure and mechanical properties of TiC-Ni functionally graded materials by simultaneous combustion synthesis and compaction, Journal of Materials Science , 35(8), 1925–1930. 31. Zohari S., Sadeghian Z., Lotfi B., Broeckmann C. (2015). Application of spark plasma sintering (SPS) for the fabrication of in situ Ni–TiC nanocomposite clad layer, Journal of Alloys and Compounds , 633, 479–483.

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Pecularities of Gas Analysis in Al and Mg Powders

Mezbahul-Islam, Ahmad Omar Mostafa, Mamoun Medraj Hindawi: Journal of Materials, vol. 2014, Article ID 704283 http://dx.doi.org/10.1155/2014/704283 [6] Pieczonka, T., Schubert, T., Baunack, S.: Sintering Behaviour of Aluminium in Different Atmospheres [7] Chua, AS., Brochu, M., Bishop, DP.: Spark plasma sintering of prealloyed aluminium powders [8] Czerwinski, F.: JOM, May, 2004 [9] Krasovskii, PV.: Inorganic materials, vol. 50, 2014, p.1480, DOI: 10.1134/S0020168514150059 [10] Colombo, A.: Analytica Chimica Acta, vol. 81, 1976, p. 397

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Porous Metallic Biomaterials Processing (Review) Part 1: Compaction, Sintering Behavior, Properties and Medical Applications

. Titanium with aligned, elongated pores for orthopedic tissue engineering applications, In: Journal of Biomedical Materials Research Part A, 84A (2) (2008) 402-412. [43] Y. Zhao, M. Taya, Y. Kang, A. Kawasaki, Compression behavior of porous NiTi shape memory alloy, Acta Mater. 53 (2005) 337–343. [44] A. Dudek, M. Klimas, Composites based on titanium alloy Ti-6Al-4V with an addition of inert ceramics and bioactive ceramics for medical applications fabricated by spark plasma sintering (SPS method), In: Materialwissenschaft Und Werkstofftechnik, 46 (3) (2015) 237

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Surface Treatment Proposals for the Automotive Industry by the Example of 316L Steel

]. Lipinski, T. (2015). Morphology of Impurities in Steel after Desulfurization and Vacuum Degassing, 14th International Scientific Conference: Engineering For Rural Development, pp. 795-800. Marnier, G., Keller, C., Noudem, J. and Hug, E. (2014). Functional properties of a spark plasma sintered ultrafine-grained 316L steel. Materials and Design, [online] Volume 63, pp. 663-640. Available at: https://www.sciencedirect.com/science/article/pii/S0261306914005020 [Accessed 2 Jul. 2014]. Moteshakker, A. and Danaee, I. (2016). Microstructure and

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The Management and Potential Risk Reductionin the Processing of Rare Earths Elements

Production, 51, 1-22. Borra, C. R., et al.,2016. Selective recovery of rare earths from bauxite residue by combination of sulfation, roasting and leaching . Minerals Engineering, 92, 151-159. Cordier, D. J., Hedrick, J. B., 2012. Rare earths . US Geological Survey, Mineral Commodity Summaries. Dai, A. X., et al., 2016. Recycling of neodymium and dysprosium from permanent magnets . Penn Engineering. Deflorian, F., Ciaghi, L., Kazior, J., 1992. Electrochemical Characterization of Vacuum Sintered Copper Alloyed Austenitic Stainless-Steel . Werkst

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Analysis of the Influence of the Heat-Absorbing Surface of an Air-Cooled Solar Collector on its Thermal and Mechanical Properties

parameters on the properties of electro-spark deposited coatings. Arch. Metall. Mater., 63, 809-816. Razak, A., Majid, Z., Azmi, W., Azmi, W., Ruslan, M., Choobchian, Sh., Najafi, G., Sopian, K., 2016, Review on matrix thermal absorber designs for solar air collector . Renewable and Sustainable Energy Reviews, 64, 682-693. Scendo, M., Trela, J., Radek, N., 2014. Influence of laser power on the corrosive resistance of WC-Cu coating . Surf. Coat. Tech., 259, 401-407. Skrzypczak-Pietraszek, E., Piska, K., Pietraszek, J., 2018. Enhanced production of the

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The Effect of Lean Tools on the Safety Level in Manufacturing Organisations

–268. Pietraszek, J., Skrzypczak-Pietraszek, E., 2014. The Optimization of the Technological Process with the Fuzzy Regression , in: Szczotok, A et al. (Eds.), Terotechnology, Advanced Materials Research. p. 151+. Pietraszek, J., Szczotok, A., Kolomycki, M., Radek, N., Kozien, E., 2017. Non-parametric assessment of the uncertainty in the analysis of the airfoil blade traces. Metal 2017: 26 th Int. Conf. on Metallurgy and Materials, 1412-1418. Pliszka, I., Radek, N., Gadek-Moszczak, A., Fabian, P., Paraska, O., 2018. Surface improvement by WC-Cu electro-spark

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