scholarly journals Wear and Friction Evaluation of Different Tool Steels for Hot Stamping

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Maider Muro ◽  
Garikoitz Artola ◽  
Anton Gorriño ◽  
Carlos Angulo
Keyword(s):  
Friction And Wear ◽  
Elevated Temperatures ◽  
Hot Stamping ◽  
Steel Specimen ◽  
Wear Behaviour ◽  
Tool Steels ◽  
Uncoated Steel ◽  
Martensitic Microstructure ◽  
Increasing Temperature ◽  
Hot Work Tool Steels

The aim of this work is to investigate the durability of tool steels for hot stamping by comparing the wear resistance of three hot work tool steels. Friction and wear behaviours of different tool steels sliding against a 22MnB5 uncoated steel at elevated temperatures were investigated using a high-temperature version of the Optimol SRV reciprocating friction and wear tester at temperatures of 40 and 200°C. Our results show that friction decreased with increasing temperature, whereas wear of the tool steel increased with temperature for the second and the third tested tool steels. The slightly better wear behaviour of steel specimen 1 comes from the hardness of the carbides in the martensitic microstructure, which are rich in vanadium.

A Brief Overview on High Temperature Friction and Wear

2010 ◽  
Author(s):  
Mustafa Bulut Coskun ◽  
Mahmut Faruk Aksit
Keyword(s):  
High Temperature ◽  
Gas Turbines ◽  
Friction And Wear ◽  
Oxidation Behavior ◽  
Elevated Temperatures ◽  
Wear Performance ◽  
Large Pressure ◽  
Higher Power ◽  
Vibratory Motion ◽  
Increasing Temperature

With the race for higher power and efficiency new gas turbines operate at ever increasing pressures and temperatures. Increased compression ratios and firing temperatures require many engine parts to survive extended service hours under large pressure loads and thermal distortions while sustaining relative vibratory motion. On the other hand, wear at elevated temperatures limits part life. Combined with rapid oxidation for most materials wear resistance reduces rapidly with increasing temperature. In order to achieve improved wear performance at elevated temperatures better understanding of combined wear and oxidation behavior of high temperature super alloys and coatings needed. In an attempt to aid designers for high temperature applications, this work provides a quick reference for the high temperature friction and wear research available in open literature. High temperature friction and wear data have been collected, grouped and summarized in tables.

Influence of Temperature and Tempering Conditions on Thermal Conductivity of Hot Work Tool Steels for Hot Stamping Applications

2015 ◽  
Vol 86 (12) ◽  
pp. 1628-1635 ◽  
Author(s):  
Stephan Hafenstein ◽  
Ewald Werner ◽  
Jens Wilzer ◽  
Werner Theisen ◽  
Sebastian Weber ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Hot Stamping ◽  
Tool Steels ◽  
Influence Of Temperature ◽  
Hot Work Tool Steels

scholarly journals Effect of water-based nanolubricant containing nano-TiO2 on friction and wear behaviour of chrome steel at ambient and elevated temperatures

Wear ◽  
2019 ◽  
Vol 426-427 ◽  
pp. 792-804 ◽  
Author(s):  
Hui Wu ◽  
Fanghui Jia ◽  
Jingwei Zhao ◽  
Shuiquan Huang ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Friction And Wear ◽  
Elevated Temperatures ◽  
Wear Behaviour ◽  
Nano Tio2 ◽  
Chrome Steel ◽  
Effect Of Water ◽  
Water Based

scholarly journals Friction and wear behaviour of tool steels sliding against 22MnB5 steel

2017 ◽  
Vol 6 (3) ◽  
pp. 241-250 ◽  
Author(s):  
Elena Gracia-Escosa ◽  
Ignacio García ◽  
Juan J. de Damborenea ◽  
Ana Conde
Keyword(s):  
Friction And Wear ◽  
Wear Behaviour ◽  
Tool Steels ◽  
22Mnb5 Steel

scholarly journals Investigation and Modeling of the Preheating Effects on Precipitation and Hot Flow Behavior for Forming High Strength AA7075 at Elevated Temperatures

2020 ◽  
Vol 4 (3) ◽  
pp. 76 ◽  
Author(s):  
Kailun Zheng ◽  
Yong Li ◽  
Song Yang ◽  
Kunning Fu ◽  
Jinghua Zheng ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Heating Rate ◽  
Hot Deformation ◽  
Elevated Temperatures ◽  
Heating Temperature ◽  
Flow Behavior ◽  
Hot Stamping ◽  
High Strength ◽  
Mechanical Tests ◽  
Increasing Temperature

Preheating is the first but critical step for hot stamping high strength precipitate hardened aluminum alloys. To thoroughly understand the effects of preheating conditions—i.e., preheating rate and heating temperature—on the strength and hot deformation of aluminum alloys, a series of thermal–mechanical tests was performed to determine the post-hardness evolution and hot flow behaviors. Typical microstructures with different preheating conditions were also observed through transmission electron microscopy (TEM), with which a unified model of both hot flow and strength based on key microstructural variables was developed, enabling the successful prediction of macroscopic properties using different preheating strategies. The results have shown that for high strength AA7075 at the T6 condition, the dominant mechanism of precipitate evolution with increasing temperature is the coarsening of precipitates first, followed by dissolution when they exceed a critical temperature. A higher heating rate results in a slower coarsening and a relatively higher strength level. In addition, the flow stress of hot deformation is also higher using a quick heating rate, with more significant softening and reduced ductility.

Wear Behaviour of Heat Treated Hot Work Tool Steels under Dry Sliding Conditions

2013 ◽  
Vol 55 (3) ◽  
pp. 163-167 ◽  
Author(s):  
Şeyda Polat ◽  
Ş. Hakan Atapek ◽  
Enbiya Türedi ◽  
Gülşah Aktaş
Keyword(s):  
Wear Behaviour ◽  
Dry Sliding ◽  
Tool Steels ◽  
Heat Treated ◽  
Hot Work Tool Steels
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