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Acta Metall Sin  2004, Vol. 40 Issue (2): 163-167     DOI:
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Damage Behavior of 20SiMn Low Alloy Steel in Slurry with Different Particle Sizes
JIANG Shengli; ZHENG Yugui; YAO Zhiming
State Key Laboratory for Corrosion and Protection; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110016
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JIANG Shengli; ZHENG Yugui; YAO Zhiming. Damage Behavior of 20SiMn Low Alloy Steel in Slurry with Different Particle Sizes. Acta Metall Sin, 2004, 40(2): 163-167 .

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Abstract  The damage mechanism of 20SiMn low alloy steel in slurry with different particle sizes was studied using a rotating disk system. The results indicate that the curve of mass loss $vs$ particle size exhibits a clear transition point beyond which the mass loss increases sharply. The SEM images of specimens suffering erosion and cavitation of big particles are obviously different from those of small particles. The damage mechanisms under conditions of small particle and big particle are selective erosion of relative soft ferrite phase and ploughing, respectively. Cavitation adds little effect to slurry erosion under condition of small particles, and obvious effect under condition of big particles.
Key words:  slurry      erosion      cavitation erosion      
Received:  17 February 2003     
ZTFLH:  TG115.58  

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https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2004/V40/I2/163

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