Comparison of empirical and predicted substrate temperature during surface melting of microalloyed steel using TIG technique and considering three shielding gases

Muñoz‐Escalona, Patricia; Walker, Alan; Ogwu, A. A.; Mridha, S.; Baker, T. N.

doi:10.1016/j.apsusc.2017.11.014

Cited by 3 publications

(4 citation statements)

References 22 publications

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“…A preliminary mathematical model [32] based on the Rosenthal approach [36] used often for modelling welding situations, was developed to predict the temperature at any point in space/time. Based on the increase in temperature (preheat) between the region close to the start of the track resulting from TIG processing and that close to the end of the track in the case of single track melting, Figure 2, shows a satisfactory agreement between experimental and numerical values obtained from the model [32].…”

Section: Resultsmentioning

confidence: 99%

“…The electrode was direct current negative and the tip of the order 1mm above the specimen surface to guarantee a constant energy input (E). Energy inputs in the range 210 to 1344 Jmm -1 were used over the course of the work [26][27][28][29][30][31][32][33].…”

Section: Methodsmentioning

confidence: 99%

“…In the work by the present authors presented in nine papers [26][27][28][29][30][31][32][33][34], the TIG processing conditions used similar to those shown to be suitable by others [35,36]. The system first chosen to explore these features was that of a low alloy steel, initially TIG processed to incorporate TiC particulates [26,27].…”

mentioning

confidence: 98%

“…The ~5 µm SiC was expected to fully dissolve, nucleating new phases during cooling. On the other hand, the ~75 µm SiC would be expected to show only partial dissolution, and the microstructure also benefiting from nucleation of new phases [28][29][30][31][32][33][34] A feature of much of this work was the examination of variations in temperature along the TIG melted track, plus in some experiments, along different tracks which were overlapped to treat an area of the parent plate [27,28].…”

mentioning

confidence: 99%

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Advances in Surface Engineering Using TIG Processing to Incorporate Ceramic Particulates into Low Alloy and Microalloyed Steels – A Review

Muñoz‐Escalona¹,

Mridha²,

Baker³

2021

Adv. Sci. Technol. Res. J.

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This paper is an invited review of the work undertaken by the present authors and their colleagues listed in the references, using surface engineering to enhance the surface properties of low alloy and microalloyed steels through the addition of ceramic powders.The background to the present projects emanated from work on particulate metal matrix composities (MMC's), which in the 1960's, grew from the development of cermets, at that time a new generation of composite materials designed to have optimal properties, including high temperature resistance and the hardness of a ceramic combined with the ability to undergo plastic deformation like a metal. Generally, the metallic elements used as a binder were nickel, molybdenum, and cobalt, and while cermets, comprised by volume < 20% metal, MMC's normally have ≥80% of metal. Both can be manufactured by a sintering process [1,2]. A more recent version of cermets are MAX phases, some comprising ternary carbides and nitrides of aluminium or titanium alloys [3,4].

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Section: Resultsmentioning

confidence: 99%