Cavitation erosion behavior of austempered ductile irons of increasing hardness

被引：11
作者：
Abreu, Marcio [1 ,2 ]
Elfsberg, Jessica [2 ]
Jonsson, Stefan [1 ]
机构：
[1] KTH Royal Inst Technol, Mat Sci & Engn, SE-10044 Stockholm, Sweden
[2] Scania CV AB, Mat Technol, SE-15187 Sodertalje, Sweden
来源：
WEAR | 2021年 / 484卷
关键词：
Cavitation erosion; Austempered ductile iron; Graphite nodule; GRAY CAST-IRON; MECHANICAL-PROPERTIES; MICROSTRUCTURE; TEMPERATURE; KINETICS;
D O I：
10.1016/j.wear.2021.204036
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The cavitation erosion mechanisms of three austempered ductile irons (ADIs) of 279, 333 and 469 Brinell hardness in a heavy-duty engine coolant at 82 degrees C were described. Sample weight was measured in 14 time steps up to 4 h and complemented by image sequences showing surface damage evolution in detail. A rapid mass loss during the first 1.5 min was attributed to surface graphite erosion, with complete nodule removal within 5 min in all ADIs. Matrix erosion became steady after 30 min, but differed in severity between ADIs, with relative mass loss rates of 4.3 : 1.5 : 1 for ADIs of low, medium and high hardness, respectively.
引用
收藏
页数：8
相关论文
共 51 条
[1]   Morphology and mechanisms of cavitation damage on lamellar gray iron surfaces [J].
Abreu, Marcio ;
Sundberg, Jill ;
Elfsberg, Jessica ;
Jonsson, Stefan .
WEAR, 2020, 456
[2]   Quantitative analysis of austempering kinetics of ductile iron with Cu addition [J].
Amran, Y. ;
Katsman, A. .
MATERIALS SCIENCE AND TECHNOLOGY, 2013, 29 (05) :529-533
[3]   Influence of Copper Addition and Temperature on the Kinetics of Austempering in Ductile Iron [J].
Amran, Yogev ;
Katsman, Alexander ;
Schaaf, Peter ;
Bamberger, Menachem .
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2010, 41 (05) :1052-1058
[4]  
[Anonymous], 2019, 94512019EN ISO 94512019EN ISO
[5]  
[Anonymous], 2018, E199918 ASTM ASTM IN E199918 ASTM ASTM IN
[6]  
[Anonymous], 2018, E101918 ASTM ASTM IN
[7]  
[Anonymous], 2018, 650712018 ISO
[8]  
[Anonymous], 2011, 1564 SSEN 1564 SSEN
[9]  
[Anonymous], 2016, G3216 ASTM ASTM INT
[10]  
[Anonymous], 2014, ISO 6506-1:2014
123456