Load effect on scratch micro-mechanisms of solution strengthened Compacted Graphite Irons
(2019) In Tribology International 133. p.182-192- Abstract
- This study investigates the scratch load effect, from 100 to 2000 mN, on micro-mechanisms involved during scratching. A pearlitic and three ferritic Compacted Graphite Irons (CGI) solution strengthened through addition of 3.66, 4.09, and 4.59 Si wt% were investigated. Good correlation was observed between hardness measurements, tensile testing, and scratch results explaining the influence of matrix characteristics on scratch behaviour for investigated alloys. A significant matrix deformation, change in frictional force and scratch coefficient of friction was observed by increase in scratch load. In all cases, microscratch depth and width increased significantly with load increasing, however pearlitic CGI showed most profound deformation,... (More)
- This study investigates the scratch load effect, from 100 to 2000 mN, on micro-mechanisms involved during scratching. A pearlitic and three ferritic Compacted Graphite Irons (CGI) solution strengthened through addition of 3.66, 4.09, and 4.59 Si wt% were investigated. Good correlation was observed between hardness measurements, tensile testing, and scratch results explaining the influence of matrix characteristics on scratch behaviour for investigated alloys. A significant matrix deformation, change in frictional force and scratch coefficient of friction was observed by increase in scratch load. In all cases, microscratch depth and width increased significantly with load increasing, however pearlitic CGI showed most profound deformation, while the maximum and minimum scratch resistances were observed for high-Si ferritic and pearlitic CGI alloys, respectively. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3e8c8d98-e677-4fd7-a6f7-3b967a1150dd
- author
- Ghasemi, Rohollah ; Johansson, Jakob LU ; Ståhl, Jan-Eric LU and Jarfors, Anders E. W.
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Tribology International
- volume
- 133
- pages
- 11 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85059818887
- ISSN
- 0301-679X
- DOI
- 10.1016/j.triboint.2019.01.010
- language
- English
- LU publication?
- yes
- id
- 3e8c8d98-e677-4fd7-a6f7-3b967a1150dd
- date added to LUP
- 2019-01-14 15:58:07
- date last changed
- 2022-04-25 20:17:36
@article{3e8c8d98-e677-4fd7-a6f7-3b967a1150dd, abstract = {{This study investigates the scratch load effect, from 100 to 2000 mN, on micro-mechanisms involved during scratching. A pearlitic and three ferritic Compacted Graphite Irons (CGI) solution strengthened through addition of 3.66, 4.09, and 4.59 Si wt% were investigated. Good correlation was observed between hardness measurements, tensile testing, and scratch results explaining the influence of matrix characteristics on scratch behaviour for investigated alloys. A significant matrix deformation, change in frictional force and scratch coefficient of friction was observed by increase in scratch load. In all cases, microscratch depth and width increased significantly with load increasing, however pearlitic CGI showed most profound deformation, while the maximum and minimum scratch resistances were observed for high-Si ferritic and pearlitic CGI alloys, respectively.}}, author = {{Ghasemi, Rohollah and Johansson, Jakob and Ståhl, Jan-Eric and Jarfors, Anders E. W.}}, issn = {{0301-679X}}, language = {{eng}}, pages = {{182--192}}, publisher = {{Elsevier}}, series = {{Tribology International}}, title = {{Load effect on scratch micro-mechanisms of solution strengthened Compacted Graphite Irons}}, url = {{http://dx.doi.org/10.1016/j.triboint.2019.01.010}}, doi = {{10.1016/j.triboint.2019.01.010}}, volume = {{133}}, year = {{2019}}, }