Abstract
The effect of high-power pulsed ion-beam (HPPIB) irradiation and various methods of the surface treatment on the crater creation phenomenon (cratering) was examined with the use of Auger electron spectroscopy. X-ray diffraction analysis, and scanning electron microscopy. They crater distribution density,sizes and shape, along with the microhardness and chemical composition inside and outside them were determined. It was shown that cratering on the surface of refractory alloys is due to the cathode material crosion and the nonstability in the physical and chemical state of the irradiated targets. The samples were treated with HPPIB. The irradiated samples were subjected to fatigue and corrosion tests. It was established that cratering leads to catastrophic fracture of the irradiated targets under the cycle load. For example, as a result of crater creation, the fatigue strength of VT18U alloy was decreased from 380 to 240 MPa. In this case the nucleation of fracture lies near the craters. Furthermore, the titanium alloys irradiated by HPPIB are subjected to pitting corrosion in seawater. It was shown that according to the test results, adjacent and dent-shape craters are the most dangerous defects under the cycle load.
| Original language | English |
|---|---|
| Pages (from-to) | 488-493 |
| Number of pages | 6 |
| Journal | Surface and Coatings Technology |
| Volume | 158-159 |
| DOIs | |
| Publication status | Published - 29 Oct 2002 |
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Keywords
- Corrosion resistance
- Crater creation
- Fatigue strength
- High-power pulsed ion beams
- Surface
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
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The effect of crater creation on the fatigue strength and corrosion resistance of steels and titanium alloys irradiated by high-power pulsed ion beams. / Shulov, V. A.; Nochovnaia, N. A.; Remnev, G. E.
In: Surface and Coatings Technology, Vol. 158-159, 29.10.2002, p. 488-493.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effect of crater creation on the fatigue strength and corrosion resistance of steels and titanium alloys irradiated by high-power pulsed ion beams
AU - Shulov, V. A.
AU - Nochovnaia, N. A.
AU - Remnev, G. E.
PY - 2002/10/29
Y1 - 2002/10/29
N2 - The effect of high-power pulsed ion-beam (HPPIB) irradiation and various methods of the surface treatment on the crater creation phenomenon (cratering) was examined with the use of Auger electron spectroscopy. X-ray diffraction analysis, and scanning electron microscopy. They crater distribution density,sizes and shape, along with the microhardness and chemical composition inside and outside them were determined. It was shown that cratering on the surface of refractory alloys is due to the cathode material crosion and the nonstability in the physical and chemical state of the irradiated targets. The samples were treated with HPPIB. The irradiated samples were subjected to fatigue and corrosion tests. It was established that cratering leads to catastrophic fracture of the irradiated targets under the cycle load. For example, as a result of crater creation, the fatigue strength of VT18U alloy was decreased from 380 to 240 MPa. In this case the nucleation of fracture lies near the craters. Furthermore, the titanium alloys irradiated by HPPIB are subjected to pitting corrosion in seawater. It was shown that according to the test results, adjacent and dent-shape craters are the most dangerous defects under the cycle load.
AB - The effect of high-power pulsed ion-beam (HPPIB) irradiation and various methods of the surface treatment on the crater creation phenomenon (cratering) was examined with the use of Auger electron spectroscopy. X-ray diffraction analysis, and scanning electron microscopy. They crater distribution density,sizes and shape, along with the microhardness and chemical composition inside and outside them were determined. It was shown that cratering on the surface of refractory alloys is due to the cathode material crosion and the nonstability in the physical and chemical state of the irradiated targets. The samples were treated with HPPIB. The irradiated samples were subjected to fatigue and corrosion tests. It was established that cratering leads to catastrophic fracture of the irradiated targets under the cycle load. For example, as a result of crater creation, the fatigue strength of VT18U alloy was decreased from 380 to 240 MPa. In this case the nucleation of fracture lies near the craters. Furthermore, the titanium alloys irradiated by HPPIB are subjected to pitting corrosion in seawater. It was shown that according to the test results, adjacent and dent-shape craters are the most dangerous defects under the cycle load.
KW - Corrosion resistance
KW - Crater creation
KW - Fatigue strength
KW - High-power pulsed ion beams
KW - Surface
UR - http://www.scopus.com/inward/record.url?scp=0036396169&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036396169&partnerID=8YFLogxK
U2 - 10.1016/S0257-8972(02)00299-2
DO - 10.1016/S0257-8972(02)00299-2
M3 - Article
VL - 158-159
SP - 488
EP - 493
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
ER -