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Published in: Tribology Letters 2/2022

01-06-2022 | Original Paper

Wear Regimes of Fe–Cr–C Hardfacing Alloys in Microscale Abrasion Tests

Authors: Fernando H. G. Colaço, Giuseppe Pintaude

Published in: Tribology Letters | Issue 2/2022

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Abstract

Microscale abrasion tests were performed to assess the wear coefficients of six hardfacing materials in the Fe–Cr–C system, having added Ti, Nb, and/or Mo. Hardfacings were manufactured employing a new technique, flux-cored double-wire gas tungsten arc welding. Two abrasive materials were used, silica and alumina, to test different degrees of abrasion severity. As a consequence, three regimes of abrasion were observed, one mild and two severe. The mild regime was characterized by wear coefficients lower than 4.1 × 10−14 m2 N−1. The severe wear regimes could be distinguished by the mean free path measured in the metallic matrix. Two hardfacings performed better under mild regime, one having added Cr, Ti, Nb, and Mo, and the other having high chromium content with added Nb and Mo. The former of these also performed the best under severe abrasion; this material had a balanced carbide content between MC and eutectic carbides that gave rise to the best performance.

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Literature
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Metadata
Title
Wear Regimes of Fe–Cr–C Hardfacing Alloys in Microscale Abrasion Tests
Authors
Fernando H. G. Colaço
Giuseppe Pintaude
Publication date
01-06-2022
Publisher
Springer US
Published in
Tribology Letters / Issue 2/2022
Print ISSN: 1023-8883
Electronic ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-022-01590-7

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