2024-03-29T09:56:02Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/218782021-06-23T09:54:11Zcom_10324_1136com_10324_931com_10324_894col_10324_1218
Martín Pedrosa, Fernando
793f7f7f2c3eae34
500
0000-0002-3110-3358
García Cabezón, Ana Cristina
5b8726b7a169d418
500
0000-0003-0524-5931
Blanco Val, María Yolanda
aa35af0835073cf6
500
0000-0001-8555-2709
2016-12-21T09:17:07Z
2015
2030-01-01
Wear 2015, 328–329, 1–7
0043-1648
http://uvadoc.uva.es/handle/10324/21878
http://dx.doi.org/10.1016/j.wear.2015.01.025
1
7
Influence of residual porosity on the dry and lubricated sliding wear of a powder metallurgy austenitic stainless steel
328-329
Powder metallurgy practices offer the opportunity to control the porosity of steels for tribology applications. The material of interest was an austenitic powder metallurgy stainless steel sintered in a nitrogen atmosphere. Four disc samples with increasing porosity (from 8% to 29%) were subjected to dry and lubricated sliding against an alumina pin using a rotary pin-on-disc tribometer. An estimation based on Hertzian contact analysis has been introduced to define the size of large pores. A normalized scar depth has been defined. The influence of pores on Archard׳s wear law has been analysed. Dry sliding, liquid lubrication, and self-lubrication (filled pores) were all evaluated. During the first few metres of dry sliding, the pores are closed by plastic deformation. After that, the wear rate can be considered the same. In lubricated conditions, pores are not closed and the higher the porosity, the lower the wear rate. In filled-pore, self-lubricated conditions, the sample with the highest porosity showed the lowest wear rate. Reasons for this behaviour are discussed.
2030-01-01
2030-01-01
application/pdf
eng
Elsevier
info:eu-repo/semantics/embargoedAccess
ELSERVIER
Sliding wear
Steel
Wear testing
Contact mechanics
Influence of residual porosity on the dry and lubricated sliding wear of a powder metallurgy austenitic stainless steel
info:eu-repo/semantics/article
SI
ORIGINAL
Wear 2015.pdf
Wear 2015.pdf
application/pdf
2929151
https://uvadoc.uva.es/bitstream/10324/21878/1/Wear%202015.pdf
3fd59b2c6488eadda1fdf61e9de330e5
MD5
1
LICENSE
license.txt
license.txt
text/plain
4250
https://uvadoc.uva.es/bitstream/10324/21878/2/license.txt
909e634ba52becf192e4e9b4bcde7863
MD5
2
THUMBNAIL
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4033
https://uvadoc.uva.es/bitstream/10324/21878/3/Wear%202015.pdf.jpg
8db71b22fbecf767c98929d90309e58d
MD5
3
10324/21878
oai:uvadoc.uva.es:10324/21878
2021-06-23 11:54:11.773
UVaDOC
repositorio@uva.es
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