|
|
CAVITATION EROSION OF 20SiMn IN SINGLE LIQUID ANDLIQUID-SOLID TWO-PHASE MEDIUM |
;; |
沈阳 中科院金属研究所 |
|
|
Abstract The effect of corrosion on cavitation erosion on 20 SiMn in single liquid (distilled water) and liquid-solid two-phase medium (silic a sand-containing distilled water) was investigated by using ultrasonic vibratio n facility. The mediums were added with 3% NaCl in order to study the effect of corrosion factor on cavitation erosion. The degradation mechanism was analyzed b y SEM observation and profile measurement. The results showed that there was synergistic interaction among electrochemical corrosion, solid particle eros ion and cavitation erosion. The surface profile of the material gets smoother in liquid-solid two-phase medium than in single liquid after cavitation erosion. C orrosion has remarkable influences on cavitation erosion of 20SiMn in both singl e liquid and liquid-solid two-phase medium. And the cavitation erosion comparati ve enhancement by corrosion in two-phase medium was less than that in single liq uid medium.The phenomenon was explained by morphology and profile observation.
|
Received: 11 August 2000
|
|
[1]KnappRT ,DailyJW ,HammitFG .Cavitation[M ].NewYork:McGrawHill,1970 [2]ZhangJ,RichardsonMOW ,WilcoxGD ,etal.Assessmentofresistanceofnon metalliccoatingstosiltabrasionandcavitationerosioninarotatingdisktestrig[J].Wear,1996,194:149 [3]KarimiA ,MartinJL .Cavitationerosionofmaterials[J].InternationalMetalsReviews,1986,31(1):4 [4]Al-HashemA ,CaceresPG ,BdullahAA ,etal.Cavitationcorrosionofduplexstainlesssteelinseawater[J].Corrosion,1997,53(2):109 [5]HuangJT .PrincipleandApplicationofCavitationandCavitationErosion[M].Beijing:TsinghuaUniversityPress,1991(黄继汤.空化与空蚀的原理及应用[M ].北京:清华大学出版社,1991) [6]LiuYJ,ChengKQ .FailureAnalysisonWear[M].Beijing:MechanicalIndustryPress,1990(刘英杰,成克强.磨损失效分析[M ].北京:机械工业出版社,1990) [7]ZhaoK ,GuCQ ,ShenFS ,LouBZ .Studyonmechanismofcombinedactionofabrasionandcavitationerosiononsomeengi neeringsteel[J].Wear,1993,162~164:811 |
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|