A Comparative Study of Hardfacing Deposits Using a Modified Tribological Testing Strategy

Slota, Ján; Kubit, Andrzej; Gajdoš, Ivan; Trzepieciński, Tomasz; Kaščák, Ľuboš

doi:10.3390/lubricants10080187

Cited by 4 publications

(6 citation statements)

References 56 publications

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“…Some authors report that hardness is strongly correlated with resistance to abrasive wear [30][31][32]. However, based on the results of the hardness measurement and the test of resistance to abrasive wear, we can conclude that the hardfacing material with the highest hardness value (59HRC) achieved a lower value of relative abrasion resistance compared to the hardfacing material with lower hardness (56HRC).…”

Section: Discussionmentioning

confidence: 83%

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Increasing the Durability of Tools for Forest Road Maintenance

et al. 2023

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To ensure the care of forests, it is necessary to make them sufficiently accessible by forest roads. The basic working tool are hammers, or round shanks of various shapes, composed of a body and a tip. They are subject to a strong abrasive environment, which often leads to damage up to the complete destruction of the functional part of the tool. For these reasons, it is necessary to deal with the possibilities for increasing their lifetime. One of the possibilities of increasing the service life of these tools is hardfacing by welding. The article deals with the abrasive resistance of the original material of the tool and the hardfacing materials. Based on the chemical analysis of the base material of the tool, we found that the tool is made of manganese steel 38Mn6. This material was used as a standard and was compared with the hardfacing materials Abradur 58, E DUR 600, UTP DUR 600 and OK 84.58. Electron microscopy was used to evaluate the microstructure. Next, the Rockwell hardness measurement was performed on the samples. The original tool material 38Mn6 reached the lowest hardness value, namely, 21 HRC. The highest value was reached by the hardfacing material E DUR 600, namely, 59 HRC. Subsequently, a test of resistance to abrasive wear was performed according to GOST 23.208-79. Based on this test, we can conclude that the highest value of resistance to abrasive wear was achieved by Abradur 58. Even though the hardness of this coating was slightly lower than the hardfacing material E DUR 600, specifically 56 HRC, we can state that this hardfacing material (Abradur 58) achieved the best results among the investigated materials.

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Section: Discussionmentioning

confidence: 83%

“…We can conclude that all the tested hardfacing materials achieved several times better resistance to abrasive wear compared to the BM of the tool. Some authors report that hardness is strongly correlated with resistance to abrasive wear [30][31][32]. However, based on the results of the hardness measurement and the test of…”

Section: Resultsmentioning

confidence: 99%

Increasing the Durability of Tools for Forest Road Maintenance

et al. 2023

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“…The most significant wear mechanism is abrasive wear, which can account for up to 63 % of the overall wear cost. [1] Hard surfacing is one of the repair methods to add hardened metal to the worn surface of mechanical components due to mechanical wear, especially abrasive wear which is the most problematic [2,3]. Martensitic steel for hard surfacing provides high weld quality, reduced cracking issues, and adequate abrasive wear resistance because this material is both hard and soft [4].…”

Section: Introductionmentioning

confidence: 99%

“…The most significant wear mechanism is abrasive wear, which can account for up to 63 % of the overall wear cost. [1]…”

Section: Introductionmentioning

confidence: 99%

Microstructural analysis of martensitic hard surfacing on low chromium alloy steel

Oo,

Muangjunburee,

Abd Rahim

et al. 2023

Materialwissenschaft Werkst

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This study focuses on the metallurgical characterization of single and multi‐layer martensitic hard surfacing onto non‐standardized low‐chromium alloy steel with a single buttering layer using an automatic submerged arc welding process as a standard reference. The metallurgical properties of hard surfaced samples are examined using an optical microscope, energy dispersive x‐ray spectroscopy, and x‐ray diffractometer. Micro‐Vickers hardness testing is also conducted to analyze and confirm the metallographic results of hard surfacing. The current study finds that the microstructure of each region is influenced by three key factors: chemical composition, heat input, and dilution. The structural type is determined by the chemical composition of materials, heat input influences the structural characteristics in the heat‐affected zone (needle‐shape martensite and tempered martensite), and dilution affects the structural characteristics of the hard surfacing layers (martensite with retained austenite). Comparing multi‐layer hard surfacing to single‐hard surfacing, the hardness values of the heat‐affected zone of the multi‐layer hard surfacing are greatly reduced, while the hardness values of the hard surfacing layers are raised.

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“…Another parameter-determining tool wear is the wrong selection of substrate material. Knowledge of the abrasion resistance of thin coatings can help in their correct selection for applications where abrasion plays a major role in their degradation [11]. The basic methods used to determine the durability of coatings are tribological tests using scratch tests [10] or tribotesters with various types: ball-on-disc [12], pin-on-disc [13], block-on-ring [14], etc.…”

Section: Introductionmentioning

confidence: 99%

Tribological Performance of Anti-Wear Coatings on Tools for Forming Aluminium Alloy Sheets Used for Producing Pull-Off Caps

Czapla,

Żaba,

Kot

et al. 2023

Materials

Self Cite

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Ensuring adequate reliability of the production process of packaging closures has made it necessary to study the effect of annealing and varnishing variants on the strength and structural properties of the stock material. As a test material, EN AW-5052-H28 aluminium alloy sheets with a thickness of 0.21 mm were used. The surface treatment of the test material involved varnishing the sheet metal surface using various varnishes and soaking the sheet metal. The coefficient of friction and the abrasion resistance of the coatings were determined using the T-21 ball-and-disc tribotester. The tested sheets were subjected to tribological analysis by the T-05 roller-block tribotester using countersamples made of Caldie and Sverker 21 tool steels. The results of the tests showed differences in mechanical and structural properties depending on the method of sample preparation. Based on the test results, significant differences in the adhesion of anti-wear coatings were found. The results revealed that the most favourable friction conditions are provided by the CrN coating. The (AlTi)N interlayer in the (AlTi)N/(AlCr)N coating adheres to the substrate over the entire tested area and no detachment from its surface was observed, which proves good bonding at the substrate/coating interface. The tested AlTiN/TiAlSiXN coating is characterised by a more homogeneous, compact microstructure compared to the (AlTi)N/(AlCr)N coating.

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A Comparative Study of Hardfacing Deposits Using a Modified Tribological Testing Strategy

Cited by 4 publications

References 56 publications

Increasing the Durability of Tools for Forest Road Maintenance

Increasing the Durability of Tools for Forest Road Maintenance

Microstructural analysis of martensitic hard surfacing on low chromium alloy steel

Tribological Performance of Anti-Wear Coatings on Tools for Forming Aluminium Alloy Sheets Used for Producing Pull-Off Caps

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