Solid Particle Erosion Characteristics of 2.25Cr–1Mo Steel Aged at 750 °C
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Published:2020-07-01
Issue:7
Volume:20
Page:4513-4516
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ISSN:1533-4880
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Container-title:Journal of Nanoscience and Nanotechnology
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language:en
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Short-container-title:j nanosci nanotechnol
Author:
Jung Kwang-Hu1,
Kim Seong-Jong1
Affiliation:
1. Division of Marine Engineering, Mokpo Maritime University, Mokpo 58628, Republic of Korea
Abstract
This study evaluated the solid particle erosion characteristics of 2.25Cr–1Mo steel with aging time. Aging was performed at 750 °C until 100 h. Specimens aged at each time were characterized by microstructure analysis and Micro-Vickers hardness. An erosion experiment was conducted
using 100~200 μm of stainless steel shot at a flow velocity of 20 m/s for 4 h. A consequently, a microstructure degradation phenomenon in which Cr-rich carbide was coarsened occurred, and the surface hardness decreased by 45%. With a decrease in the hardness, the solid particle erosion
damage increased and the erosion damage type changed.
Publisher
American Scientific Publishers
Subject
Condensed Matter Physics,General Materials Science,Biomedical Engineering,General Chemistry,Bioengineering