The mechanism of cavitation erosion is investigated in detail through observations of the removed particles from pure aluminum (Al-99.999). The particles removed during the incubation stage have distinctive characteristics compared to those removed in the subsequent stages. These characteristics are distinguished by lamellae structure, foldness, waviness, large size as well as one of the particle surfaces appeared to be part of the original face of the specimen. Therefore, these characteristics can be used as a monitor for early detection of cavitation erosion in closed systems. Systematic observations of disloged particles and eroded surface morphology show that the dominant failure mode in cavitation erosion is fatigue.

Issue Section:
Friction & Wear
Keywords:
aluminium, fatigue, surface morphology, wear, cavitation erosion, erosion particles, characterization of particles, erosion mechanisms, Al-99.999
Topics:
Cavitation erosion, Erosion, Particulate matter, Fatigue
1.
Steller
,
J.
, 1999, “
International Cavitation Erosion Test and Quantitative Assessment of Material Resistance to Cavitation
,”
Wear
0043-1648,
233–235
, pp.
51
–
64
.
2.
Kenkermath
,
D.
, and
Thiruvengadam
,
A.
, 1974, “
Analysis and Characterization of Particles Produced by Cavitation Erosion
,”
Proceedings of Cavitation
, Inst. Mech. Eng.,
Edinburgh
, pp.
285
–
295
.
3.
Tomlinson
,
W. J.
, and
Chapman
,
D.
, 1974, “
Effect of Amplitude on the Erosion and Corrosion of Copper by 20kHz Ultrasound
,”
Wear
0043-1648,
27
, pp.
381
–
384
.
4.
Ahmed
,
S. M.
,
Hokkirigawa
,
K.
,
Kikuchi
,
K.
,
Higuchi
,
J.
, and
Oba
,
R.
, 1993, “
SEM Studies of Particles Produced by Cavitation Erosion
,”
JSME Int. J., Ser. B
1340-8054,
36
(
4
), pp.
517
–
523
.
Crossref
Search ADS
 
5.
Hattori
,
S.
, and
Nakao
,
E.
, 2002, “
Cavitation Erosion Mechanism and Quantitative Evaluation Based on Erosion Particles
,”
Wear
0043-1648,
249
, pp.
839
–
845
.
Crossref
Search ADS
 
6.
ASTM Stand-G32-92, ASTM Stand-G32-92
, 1995,
Annual Book of ASTM Standards
,
ASTM
,
Philadelphia
, Part 03.02, p.
97
.
7.
Vyas
,
B.
, and
Preece
,
C. M.
, 1976, “
Stress Produced in a Solid by Cavitation
,”
J. Appl. Phys.
0021-8979,
47
(
12
), pp.
5133
–
5138
.
Crossref
Search ADS
 
8.
Ahmed
,
S. M.
,
Ito
,
Y.
,
Higuchi
,
J.
, and
Oba
,
R.
, 1990, “
A Peculiar Behavior of Cavitation Nuclei Size Distributions in Sample Water Under Vibratory Erosion Tests
,”
JSME Int. J., Ser. II
0914-8817,
33
(
4
), pp.
629
–
633
.
9.
Ahmed
,
S. M.
, 1998, “
Investigation of the Temperature Effects on Induced Impact Pressure and Cavitation Erosion
,”
Wear
0043-1648,
218
, pp.
119
–
127
.
Crossref
Search ADS
 
10.
Singer
,
B. C.
, and
Harvey
,
S. J.
, 1979, “
Gas Content and Temperature Effects in Vibratory Cavitation Tests
,”
Wear
0043-1648,
52
, pp.
147
–
160
.
Crossref
Search ADS
 
11.
Ahmed
,
S. M.
,
Hokkirigawa
,
K.
, and
Oba
,
R.
, 1994, “
Fatigue Failure of SUS 304 Caused by Vibratory Cavitation Erosion
,”
Wear
0043-1648,
177
, pp.
129
–
137
.
Crossref
Search ADS
 
12.
Preece
,
C. M.
, 1979, “
Cavitation Erosion
,”
Treatise on Materials Science and Technology
,
C. M.
Preece
, ed.,
Academic
,
New York
, Vol.
16
, p.
249
.
13.
Roylance
,
B. J.
, and
Raadnui
,
S.
, 1994, “
The Morghological Attributes of Wear Particles-Their Role in Identifying Wear Mechanisms
,”
Wear
0043-1648,
175
, pp.
115
–
121
.
Crossref
Search ADS
 
14.
Thiruvengadam
,
A.
, and
Prieser
,
H. S.
, 1964, “
On Testing Materials for Cavitation Damage Resistance
,”
J. Ship Res.
0022-4502,
8
(
4
), pp.
39
–
56
.
15.
Vaidya
,
S.
, and
Preece
,
C. M.
, 1978, “
Cavitation Erosion of Age-Hardenable Aluminum Alloys
,”
Metall. Trans. A
0360-2133,
9A
, pp.
299
–
307
.
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