Interpass Temperature Affecting Abrasive Wear Resistance of SMAW Hard-Faced Weld Metal on JIS-S50C Carbon Steel

2019 ◽  
Vol 950 ◽  
pp. 60-64 ◽  
Author(s):  
Surat Triwanapong ◽  
Sivakorn Angthong ◽  
Kittipong Kimapong

This research work aimed to study an effect of interpass temperature on a wear resistance of a hard-faced weld metal on JIS-S50C carbon steel surface. The experimental results were found that the increase of the interpass temperature resulted in the increase of the grain size, the decrease of the hardness, and the decrease of wear resistance of the hard-face weld metal. Low interpass temperature affected to increase the residual stress inducing the cracking on the interface between the first weld metal layer and the base metal. Wear surface composed the crater and the groove wear traces that showed the different evidence of the failed off metal particles. The lower wear rate was found at the location where contained high amount of the reinforced elements such as chromium, silicon and manganese. The lowest weight loss of 0.89% could be obtained with an application of the optimum interpass temperature of 150 °C.

2020 ◽  
Vol 861 ◽  
pp. 52-56
Author(s):  
Kittipong Kimapong ◽  
Voraya Wattanajitsiri ◽  
Sakchai Chantasri ◽  
Surat Triwanapong

This paper aimed to study an overlap distance (OL) of hard-faced welding bead in a tungsten inert gas (TIG) welding on the JIS-S50C carbon steel surface. Hard-faced weld metal was produced on an outside surface of the cylinder, using TIG welding with a high chromium flux-cored wire electrode. Welding process parameters were a welding current of 150–210 A and a hard-faced layer of 1–3. The experimental results were summarized as follows. An increase in welding current increased the weld width and the penetration but decreased the weld convex. It also increased the hardness and wear resistance of hard-faced weld metal. The increase of a weld overlap distance resulted in a decrease in the dilution effect in weld metals and an increase in the hardness and wear resistance. An increase in the hard-faced weld metal layer also resulted in a decrease in the dilution effect, resulting in an increase in the hardness and wear resistance.


2015 ◽  
Vol 818 ◽  
pp. 61-64 ◽  
Author(s):  
Norbert Radek ◽  
Jozef Bronček ◽  
Peter Fabian ◽  
Jacek Pietraszek ◽  
Krzysztof Antoszewski

The paper is concerned with the performance properties of electro-spark deposited coatings, which were determined basing on microstructural and roughness analysis and application tests. The studies were conducted using of the tungsten carbide-ceramic electrodes produced by the powder metallurgy hot pressing route. The anti-wear coatings were electro-spark deposited over C45 carbon steel by means of an EIL-8A. These coatings are likely to be applied to increase the abrasive wear resistance of tools and machine parts.


2010 ◽  
Vol 34-35 ◽  
pp. 1338-1342
Author(s):  
Zheng Guan Ni

through super-hard wear-resistant surface electrode surfacing D707 in Low-carbon steel. We have analysis the effect of welding process parameters and post-weld heat treatment process on low carbon steel surface hardness of cladding layer. The experimental results show that: after quenching hardness value no significant change; But after annealing the hardness value decreased and after annealing the crystal grain of the underlying tissues uniformization become tiny. micro-hardness testing is carried out in the weld cross-section, we have find out that from the base metal to the cladding layer the surface hardness values is getting higher and higher, while the indentation is getting smaller and smaller. Because hardness is a measure of wear resistance materials, thus it can indirectly show that when low-carbon steel surface electrode in the super-hard wear-resistant surfacing welding layer, it can improve the surface hardness of low carbon steel and improve wear resistance of low carbon steel surface.


2016 ◽  
Vol 872 ◽  
pp. 55-61 ◽  
Author(s):  
Kittipong Kimapong ◽  
Pramote Poonayom ◽  
Voraya Wattanajitsiri

Hard-facing welding is one of the repairing methods for increasing hard metal on the agricultural machine part surfaces that caused by the wear mechanism. To this date, the investigation of an optimized welding process parameter that could produce high hardness and wear resistance of the hard-facing layer is still being developed and performed. This paper aims to study the effects of hard-facing welding layer on mechanical properties and microstructure of hard-facing weld metal on JIS-50C carbon steel. The summarized results are as follows: (a) an increase of hard-facing layer affected to increase the hardness of the layer, (b) the hardness of the welds showed a maximum hardness of about 750 HV at a top surface of 3rd welds layers with no-buffering layer and showed the minimum hardness of about 225 HV at a base metal, (c) microstructure investigation showed that the increase of the phase that contained higher chromium, molybdenum and manganese affected the increase of the hardness and the wear resistance of the weld metal, (d) The minimum mass loss of 0.2559 mg/m could be found when a welding current of 100A, non-buffering layer and 3 layers of hard-facing weld metal were applied, and (e) the buffering layer was able to produce a sound weld metal and might not be suited for the hard-facing welding of the medium carbon steel because it produced the dilution effect that deteriorated the mechanical properties of the weld metal.


2008 ◽  
Vol 202 (16) ◽  
pp. 4041-4046 ◽  
Author(s):  
Mianhuan Guo ◽  
Aiguo Liu ◽  
Minhai Zhao ◽  
Hailong Hu ◽  
Zhijian Wang

1989 ◽  
Vol 24 (4) ◽  
pp. 424-426
Author(s):  
V. M. Golubets ◽  
V. V. Kozub ◽  
M. I. Pashechko

2011 ◽  
Vol 189-193 ◽  
pp. 2860-2863
Author(s):  
Hong Xia Gao ◽  
Yu Hui Zhang ◽  
Jian Xiu Liu ◽  
Gai Yun Yang

With expendable pattern casting, WC infiltrated layer on carbon steel surface can be gained. Metallography of infiltrated layer was researched, hardness of infiltrated layer was tested and wear resistance was also tested on ML-100 attrition testing machine. Experimental results shoes that: microstructure of infiltrated layer is made up of pearlite, ferrite and WC particle, Brinell hardness of infiltrated layer is 1.7 times that of the matrix and wear resistance is 2.97 times that of the matrix.


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