Preparation of TiC reinforced steel composites and their characterisation

Galgali, R. K.; Ray, H. S.; Chakrabarti, Anupam

doi:10.1179/026708399101505905

Cited by 34 publications

(13 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[13] propose that C reacts with TiB 2 and Fe, which results iron and steel matrices. [8,9] These master alloys are prein the formation of titanium carbide and Fe 2 B. Tanaka pared by a self-propagating, high-temperature synthesis and Saito [14] are in agreement with this but go further, (SHS) reaction and are reported to be impurity-free and proposing that oxygen (present as an impurity) can conreadily wetted by the liquid ferrous matrix, resulting in sume Ti and lead to a deviation in the TiB 2 stoichiometry. high yields and good dispersions of TiC.…”

Section: Introductionsupporting

confidence: 50%

The incorporation of self-propagating, high-temperature synthesis-formed Fe-TiB2 into ferrous melts

Degnan

Shipway

2002

Metall Mater Trans A

View full text Add to dashboard Cite

Steel-matrix particulate composites were processed by direct addition of an Fe-TiB 2 master alloy powder to a BS970:080M30 medium-carbon steel. This powder was produced using a self-propagating, high-temperature synthesis (SHS) reaction and consisted of a dispersion of fine TiB 2 particles (2 to 5 m), respectively, in an iron binder. The addition of the Fe-TiB 2 powder resulted in the formation a parasitic Fe 2 B phase and TiC within the steel microstructure. In response to this, an SHS master alloy composed of Fe-(50 pct TiB 2 ϩ 50 pct Ti) was manufactured, which, when added to the steel, prevented the formation of Fe 2 B and resulted in a composite containing a mixture of TiB 2 and TiC particles. The effect of master alloy composition and addition level on the microstructural phases generated is discussed in detail. The response to heat treatment of composite materials manufactured in this way was also investigated. It was found that an isothermal hold at 840 ЊC leads to a substantial softening of the material processed using the Fe-TiB 2 additive, while at 1000 ЊC, a hardness level equivalent to that of the as-cast material was maintained. The same heat treatment of samples in which the formation of Fe 2 B was suppressed resulted in no appreciable difference in hardness level or microstructure.

show abstract

Section: Introductionsupporting

confidence: 50%

The incorporation of self-propagating, high-temperature synthesis-formed Fe-TiB2 into ferrous melts

Degnan

Shipway

2002

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…[9] Generally, the TiC-and TiB 2 -Fe composites have been produced by various processing routes such as powder metallurgy (P/M), [2,14] combustion synthesis, also called self± propagating high±temperature synthesis (SHS), [11,15] conventional melting and casting technologies, i.e. in situ reactions between Ti powder and C±rich liquid Fe, [16] C powder and liquid Ti±Fe alloys [17] or C±Fe and Ti±Fe liquid alloys, [18] direct dispersion of TiC powder, [19,20] TiC±Fe [21] or TiB 2 ±Fe [9,10] master alloys in liquid steel, and carbothermic reduction processes. [6,7,22] The P/M is usually energy and capital intensive and prove difficult to scale up for large components.…”

mentioning

confidence: 99%

Fabrication of Steel Matrix Composite Locally Reinforced with in Situ TiB₂ Particulate using Self–Propagating High–Temperature Synthesis Reaction of Ni–Ti–B System During Casting

Wang

Jiang²,

et al. 2005

Adv Eng Mater

View full text Add to dashboard Cite

plasma plume. To achieve a columnar porous structure as well as a high growth rate of the thicker pc-ZrO 2 layer, a pulsed 1 kW laser was applied. The irradiation parameters (pulse duration 1 ms, power density 10 5 W/cm 2 ) were chosen such that conventional thermal evaporation without plasma formation occurred. The targets for the ZrO 2 deposition were pressed and sintered from amperite powder (Y 2 O 3 : 7.79 wt%, HfO 2 : 1.84 wt%, SiO 2 : 0.20 wt%, ZrO 2 : remaining).Investigation of Boundary Layer Reactions: By means of PLD with a relatively high pulse energy of 800 mJ and stronger focusing, the generation of otherwise undesired droplets of the target material is forced. Since the directional characteristic of the droplets differs from that of the plasma plume, the substrate can be arranged in such a way that predominantly droplets are deposited. Due to the high kinetic energy of the droplets, they are flattened on impact before they solidify. The resulting Al and Ti hillocks are typically 2 to 20 lm in diameter and 0.5 to 5 lm high. (Fig. 2) After droplet deposition, the Al/Cu and Ti/Cu samples were tempered (773 / 823 K, 100 / 300 min, atmosphere Ar 4.8, 10 5 Pa). The resulting composition changes were examined by EDX in the SEM and also by AES depth analysis. The preparation of cross-sections of deposited droplets by ion milling with 7 keV Kr ions proved to be particularly useful (Fig. 3). At such cross sections, the chemical composition in the vicinity of the interface was measured by EDX.Investigation of Roughness effects: Roughness values R a of the copper substrate between 0.03 and 1.1 lm were prepared using appropriate grinding agents (abrasive paper, grit size P80 to P2500). The roughness was determined by a mechanical profiler (MAHR Perthometer S8P) and averaging over typically three samples polished in the same manner.Bending bars with the dimensions 30 4.5 3 mm 3 were coated onto one face with an area of 30 4.5 mm 2 . These samples were then deformed by means of four-point bending where the coated surface was chosen as side face of the bending bar (cf. Fig. 4). Due to the bending deformation of the substrate, the coating is simultaneously subjected to a tensile load (Fig. 4, upper side) and a compressive load (lower side). To characterise the coating adherence quantitatively, the maximum substrate strains on the upper and lower sides of the bending bars were used. In particular, the critical spallation strains were determined where in the course of bending first spallings were visible to the naked eye under tensile and compressive load, respectively.Metal matrix composites (MMCs) are a class of materials that seek to combine the high strength and stiffness of a ceramic with the damage tolerance and toughness provided by a metal matrix. [1,2] Although most of the studies on MMCs are centered on the lightweight engineering materials titanium, aluminum and magnesium due to their attractive combination of improved mechanical properties and weight-saving potential, [3±5] there is also significant inter...

show abstract

“…However, apart from a few later publications in this line of steel with carbide and borides particles previously developed (Nutting, 1998;Bates et al, 1998;Galgali et al, 1999;Degnan & Shiway, 2002) and others relating to training "in-situ" the precipitation, from alloying elements, of TiC particles in ferrous materials (Das et al, 2005;Dogan et al, 2006), there is hardly any progress on the matter. One proper steel alloy to be intended to reinforce is the Hadfield type steel because the austenite of this manganese steel (1.0-1.4%C; 12-14%Mn), even though able to be hardened by impact, explosion, etc., is very ductile, tough and deformable, so that the industrial parts made with this material often suffer important geometric deformations during its work.…”

Section: Reinforcement Of Austenitic Manganese Steel With (Timo) Carbmentioning

confidence: 99%

Reinforcement of Austenitic Manganese Steel with (TiMo) Carbide Particles Previously Synthesized by SHS

Ignácio¹

2011

Advances in Ceramics - Synthesis and Characterization, Processing and Specific Applications

View full text Add to dashboard Cite

Preparation of TiC reinforced steel composites and their characterisation

Cited by 34 publications

References 8 publications

The incorporation of self-propagating, high-temperature synthesis-formed Fe-TiB2 into ferrous melts

The incorporation of self-propagating, high-temperature synthesis-formed Fe-TiB2 into ferrous melts

Fabrication of Steel Matrix Composite Locally Reinforced with in Situ TiB₂ Particulate using Self–Propagating High–Temperature Synthesis Reaction of Ni–Ti–B System During Casting

Reinforcement of Austenitic Manganese Steel with (TiMo) Carbide Particles Previously Synthesized by SHS

Contact Info

Product

Resources

About

Preparation of TiC reinforced steel composites and their characterisation

Cited by 34 publications

References 8 publications

The incorporation of self-propagating, high-temperature synthesis-formed Fe-TiB2 into ferrous melts

The incorporation of self-propagating, high-temperature synthesis-formed Fe-TiB2 into ferrous melts

Fabrication of Steel Matrix Composite Locally Reinforced with in Situ TiB2 Particulate using Self–Propagating High–Temperature Synthesis Reaction of Ni–Ti–B System During Casting

Reinforcement of Austenitic Manganese Steel with (TiMo) Carbide Particles Previously Synthesized by SHS

Contact Info

Product

Resources

About

Fabrication of Steel Matrix Composite Locally Reinforced with in Situ TiB₂ Particulate using Self–Propagating High–Temperature Synthesis Reaction of Ni–Ti–B System During Casting