Insights into the behaviour of tool steel-aluminium alloy tribopair at different temperatures

Huttunen-Saarivirta, Elina; Kilpi, Lauri; Hakala, Timo J.; Metsäjoki, Jarkko; Ronkainen, Helena

doi:10.1016/j.triboint.2017.11.041

Cited by 31 publications

(17 citation statements)

References 43 publications

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“…However, wear tracks of functionalized Cu-O with minimal and medium coverage are significantly smaller than on the non-functionalized disk possibly due to adhesive failure of Cu-O. Yet, sliding against aluminum revealed immediately high friction ( Figure 3) and material transfer (Figure 4b) for the unmodified steel disk similar to previous studies [16][17][18] as well as for the disk with the non-functionalized Cu-O surface baring the widest wear track. The functionalization of Cu-O with C18PA of maximum molecular coverage outperforms all other surfaces considering the low friction against aluminum for the complete sliding distance (Figure 3), minor surface damages (Figure 4a), and no mass loss ( Table 2).…”

Section: Tribologysupporting

confidence: 80%

“…However, adhesion between tool and workpiece needs to be prevented. Particularly, this is true for forming of aluminum, where the strong interaction between workpiece and tool surface causes rapid material transfer as well as sticking increasing friction and wear observed for aluminum-steel combinations [16][17][18] as well as for coated surfaces in contact with aluminum without liquid lubrication [19][20][21]. As already emphasized in a previous study [22], functionalizing a tool steel surface with a monolayer (ML) of n-octadecylphosphonic acid (C18PA) helps to reduce friction and adhesion by the distal hydrocarbon ML-moieties weakly interacting with the aluminum surface, while the ML-molecules are chemisorbed on the steel surface by P-O-Fe bonds.…”

Section: Introductionmentioning

confidence: 99%

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Molecular Coverage Determines Sliding Wear Behavior of n-Octadecylphosphonic Acid Functionalized Cu–O Coated Steel Disks against Aluminum

et al. 2020

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The sliding wear behavior of Cu–O coated steel disks functionalized with n-octadecyl-phosphonic acids was evaluated against aluminum in ball-on-disk tribometer experiments. After 5 m of sliding the friction coefficient of the functionalized sample with maximum molecular coverage is ≤0.3 ± 0.1. Surfaces with lower coverage mitigate friction and wear as well exhibiting initially similar low friction coefficients but reveal the breakdown of lubrication for sliding distances <5 m. The length of the low friction sliding distance before breakdown scales with the coverage of n-octadecylphosphonic acids on the Cu–O surface. Coverage hence determines the tribological behavior of the functionalized surface against sliding aluminum. As the coverage is increased, detrimental asperity contacts between the rubbing surfaces are reduced.

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Section: Tribologysupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Molecular Coverage Determines Sliding Wear Behavior of n-Octadecylphosphonic Acid Functionalized Cu–O Coated Steel Disks against Aluminum

et al. 2020

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“…In a fundamental study, Huttunen-Saarivirta et al [539] have presented an insight into the tribological behaviour of H13 tool steel-6082 aluminium alloy by using a pin on disc test configuration in the context of extrusion process. The tribological tests were conducted at room temperature, 350, 400, 450, and 500 °C , respectively, and using different contact pressures (510 and 810 MPa).…”

Section: Friction and Wear At High Temperaturementioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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The reach of tribology has expanded in diverse fields and tribology related research activities have seen immense growth during the last decade. This review takes stock of the recent advances in research pertaining to different aspects of tribology within the last 2 to 3 years. Different aspects of tribology that have been reviewed including lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology. This review attempts to highlight recent research and also presents future outlook pertaining to these aspects. It may however be noted that there are limitations of this review. One of the most important of these is that tribology being a highly multidisciplinary field, the research results are widely spread across various disciplines and there can be omissions because of this. Secondly, the topics dealt with in the field of tribology include only some of the salient topics (such as lubrication, wear, surface engineering, biotribology, high temperature tribology, and computational tribology) but there are many more aspects of tribology that have not been covered in this review. Despite these limitations it is hoped that such a review will bring the most recent salient research in focus and will be beneficial for the growing community of tribology researchers.

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“…In consequence, the automotive sector, which is the industrial application where hot stamping is most implanted, uses extensively hot work tool steels. Hot stamping die related friction and wear have been studied extensively employing hot work tool steels, with 1.2343 [12][13][14][15][16], 1.2344 [17][18][19][20][21][22][23], and 1.2367 [18,24] as the most frequent choices. Some have been also employed for aluminum coated steel hot stamping [20], together with proprietary steels such as Toolox ® 44 from SSAB [21], QRO90 ® Supreme from Uddeholm [2,25], or W300 ® from Böhler [4].…”

mentioning

confidence: 99%

“…• reciprocating pin-on-disk [2,3,26,27], • reciprocating ball-on-disk [20], • regular ball-on-disk [13][14][15]18,21,27], • block-on-ring [17], • hot strip drawing [4,16,[22][23][24][25], • cross cylinder [19], • block-on-cylinder [13], • and top hat drawing test [27].…”

mentioning

confidence: 99%

Die Material Selection Criteria for Aluminum Hot Stamping

Muro

Aseguinolaza²,

Artola

2021

JMMP

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The aim of this work is to develop a die material selection criterion for aluminum hot stamping applications. The criterion has been based on the back-to-back comparison of a set of reciprocating friction and wear tests. Three representatives belonging to different stamping die material families have been selected for the study: a cold work steel, a hot work steel, and a cast iron. These tool materials have been combined with an exemplary member from two heat treatable aluminum families: 2XXX and 6XXX. Each die-material/aluminum–alloy combination has been tested at three temperatures: 40, 200, and 450 °C. The temperatures have been selected according to different stamping scenarios: long takt time press quenching, short takt time press quenching, and very short takt time hot forming without quenching, respectively. The results show that, among the three die material options available, the cold work steel turned out to be the most favorable option for high volume production and long takt time, the hot work steel fitted best for high volume production coupled with short takt time, and cast iron turned to outstand for short runs with prototype dies and for hot stamping without die quenching.

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Insights into the behaviour of tool steel-aluminium alloy tribopair at different temperatures

Cited by 31 publications

References 43 publications

Molecular Coverage Determines Sliding Wear Behavior of n-Octadecylphosphonic Acid Functionalized Cu–O Coated Steel Disks against Aluminum

Molecular Coverage Determines Sliding Wear Behavior of n-Octadecylphosphonic Acid Functionalized Cu–O Coated Steel Disks against Aluminum

A review of recent advances in tribology

Die Material Selection Criteria for Aluminum Hot Stamping

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