Consolidation of AISI316L Austenitic Steel — TiB2 Composites by SPS and HP-HT Technology

Sulima, Iwona

doi:10.5772/59014

Cited by 9 publications

(9 citation statements)

References 33 publications

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“…The HP-HT process is very effective in the improvement of grain orientation compared to the conventional hot pressing and hot isostatic pressing methods, providing a density reaching 99% of the theoretical density [28,29]. The HP-HT process has already proved to be successful in the manufacture of, among others, 316L steel [29,30], NiAl alloy [31] and NiAl+TiB 2 composite [32].…”

Section: Methodsmentioning

confidence: 99%

Characteristics of the Nial/Ni3al Matrix Composite With Tib2 Particles Fabricated By High Pressure – High Temperature Sintering

Hyjek

Sulima

Jaworska

2017

Archives of Metallurgy and Materials

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The article presents the results of tests carried out on the manufactured composite materials based on a two-phase NiAl/Ni 3 Al matrix, which was enriched with the addition of TiB 2 ceramic particles added in an amount of 4 and 7 vol%. The resulting mixtures were sintered by the High Pressure High Temperature (HP-HT) process. The results were compared to the results obtained for the sole matrix material produced under the same conditions. It has been shown that, at a lower density, the addition of reinforcing particles increases the composite hardness, Young's modulus and resistance to frictional wear. However, higher addition of TiB 2 (7 vol%) was observed to yield less satisfactory results, and despite higher hardness and lower density caused a decrease in other properties tested. The produced materials were characterized by a compact and highly differentiated microstructure free from any noticeable cracks and pores.

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Section: Methodsmentioning

confidence: 99%

Characteristics of the Nial/Ni3al Matrix Composite With Tib2 Particles Fabricated By High Pressure – High Temperature Sintering

Hyjek

Sulima

Jaworska

2017

Archives of Metallurgy and Materials

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“…Application of the SPS method promotes the formation of new phases. Chemical analysis of composites sintered by SPS disclosed the presence of numerous precipitates in the microstructure, containing mainly chromium [29]. Surface morphology of the composites after corrosion experiments is presented in Figures 9-11.…”

Section: Relationships Between Changes In Mass and Temperature (Tg)mentioning

confidence: 98%

Application of Thermal Analysis to Study Composite Materials

Sulima

Homa²,

Malczewski

2015

mafe

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The results of corrosion studies of composite materials obtained by two methods of powder metallurgy are presented in the article. The main goal of the studies was to determine the high-temperature corrosion resistance of steel-matrix composites reinforced with 8 vol.% TiB 2. Thermogravimetric analyses were conducted at 1100°C in air during a 24 h cycle. The microstructure of the composite after thermogravimetric studies was observed with a scanning electron microscope.

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“…Figure 1 shows the operation scheme of a SPS equipment installed on Senai Innovation Institute of Electrochemistry (ISI-EQ), from Curitiba -PR, Brazil. on the detail, the basic scheme of a SPS oven [16].…”

Section: Introductionmentioning

confidence: 99%

“…However, on literature the terms "Pulsed Electric Current Sintering" (PECS) and "Field Assisted Sintering Technique" (FAST) are used in order to avoid the employ of word "plasma", because its existence on the process is still discussed. The SPS sintering process allows the use of lower temperatures and time (few minutes), in comparison with the conventional sintering, producing dense materials with low grain growth [15][16][17]. This process uses pulsed continuous current simultaneously to a uniaxial compaction pressure to consolidate the powder.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of electrical conductivity and density of 8 mol% yttria-stabilized zirconia produced by Spark Plasma Sintering

Polla¹,

Valentini²,

Junior³

et al. 2016

Blucher Chemistry Proceedings

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In this work, 8 mol% yttria-stabilized zirconia (8%YSZ) containing micro or nanoparticles were manufactured by Spark Plasma Sintering technique, in order to improve sample densification and control grain growth. The electrical conductivity of dense 8%YSZ pellets sintered was investigated by electrochemical impedance spectroscopy (EIS). Preliminary results showed for samples produced from both micro and nanoparticle sintered at 1000 °C for 5 min, the relative density is approximately 98 %, while for the others samples sintered at 1200 °C the density is above 99 %. These densities are higher in comparison to the same composite sintered by conventional method. The electrical measurements were carried out at 500 °C in air and the best results were obtained for samples with nano particle size in comparison with micro granulometry. The SPS process allows using lower temperatures and shorter times to produce materials with high density and controlled grain growth.

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Consolidation of AISI316L Austenitic Steel — TiB2 Composites by SPS and HP-HT Technology

Cited by 9 publications

References 33 publications

Characteristics of the Nial/Ni3al Matrix Composite With Tib2 Particles Fabricated By High Pressure – High Temperature Sintering

Characteristics of the Nial/Ni3al Matrix Composite With Tib2 Particles Fabricated By High Pressure – High Temperature Sintering

Application of Thermal Analysis to Study Composite Materials

Evaluation of electrical conductivity and density of 8 mol% yttria-stabilized zirconia produced by Spark Plasma Sintering

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