Karastojković, Zoran

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  • Karastojković, Zoran (4)
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Author's Bibliography

Non-destructive metallography & replica method for inspection connecting rod material and cracks detection

Kovačević, Zorica; Karastojković, Zoran; Aleksić, Vujadin

(2013)

TY  - JOUR
AU  - Kovačević, Zorica
AU  - Karastojković, Zoran
AU  - Aleksić, Vujadin
PY  - 2013
UR  - https://doaj.org/article/b1901f45fd5146a992a526f6b1a24fe6
UR  - http://rims.institutims.rs/handle/123456789/663
AB  - Testing of materials properties is usually a discipline for the quality assurance during manufacturing processes. In condition monitoring, certification or upgrading of existing plants and in failure analysis similar benefits from nondestructive testing of materials properties can be achieved. Another benefit from the Non-Destructive Metallography (NDM) is that the test can be made on-site. NDM is a well established and proven tool to help determine the integrity of generator and hydro turbine components during their life-cycle in power plant environments. On-site metallography of components makes it possible to evaluate the microstructure of materials. It allows microstructural analysis of large components that are difficult to move or not permitted to be destructively tested, enabling rapid evaluation of the material. Here are monitored the microstructural changes and crack detection in St 35 connecting rod steel after approximately 15 years in service. The paper includes a short description of the replica method as a technique for microstructural examination of components by using non-destructive testing method.
T2  - DOAJ
T1  - Non-destructive metallography & replica method for inspection connecting rod material and cracks detection
EP  - 24
SP  - 22
VL  - 1/1
UR  - https://hdl.handle.net/21.15107/rcub_rims_663
ER  - 
@article{
author = "Kovačević, Zorica and Karastojković, Zoran and Aleksić, Vujadin",
year = "2013",
abstract = "Testing of materials properties is usually a discipline for the quality assurance during manufacturing processes. In condition monitoring, certification or upgrading of existing plants and in failure analysis similar benefits from nondestructive testing of materials properties can be achieved. Another benefit from the Non-Destructive Metallography (NDM) is that the test can be made on-site. NDM is a well established and proven tool to help determine the integrity of generator and hydro turbine components during their life-cycle in power plant environments. On-site metallography of components makes it possible to evaluate the microstructure of materials. It allows microstructural analysis of large components that are difficult to move or not permitted to be destructively tested, enabling rapid evaluation of the material. Here are monitored the microstructural changes and crack detection in St 35 connecting rod steel after approximately 15 years in service. The paper includes a short description of the replica method as a technique for microstructural examination of components by using non-destructive testing method.",
journal = "DOAJ",
title = "Non-destructive metallography & replica method for inspection connecting rod material and cracks detection",
pages = "24-22",
volume = "1/1",
url = "https://hdl.handle.net/21.15107/rcub_rims_663"
}
Kovačević, Z., Karastojković, Z.,& Aleksić, V.. (2013). Non-destructive metallography & replica method for inspection connecting rod material and cracks detection. in DOAJ, 1/1, 22-24.
https://hdl.handle.net/21.15107/rcub_rims_663
Kovačević Z, Karastojković Z, Aleksić V. Non-destructive metallography & replica method for inspection connecting rod material and cracks detection. in DOAJ. 2013;1/1:22-24.
https://hdl.handle.net/21.15107/rcub_rims_663 .
Kovačević, Zorica, Karastojković, Zoran, Aleksić, Vujadin, "Non-destructive metallography & replica method for inspection connecting rod material and cracks detection" in DOAJ, 1/1 (2013):22-24,
https://hdl.handle.net/21.15107/rcub_rims_663 .

Microstructure analysis and crack detection in turbine blades after prolonged exposure in plant

Kovačević, Zorica; Karastojković, Zoran; Aleksić, Vujadin; Janjušević, Zoran

(Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad, 2012)

TY  - CONF
AU  - Kovačević, Zorica
AU  - Karastojković, Zoran
AU  - Aleksić, Vujadin
AU  - Janjušević, Zoran
PY  - 2012
UR  - http://rims.institutims.rs/handle/123456789/189
AB  - Turbine blades are one of the most important machine parts in every power generator. Corrosion and/or erosion attack on blades are also available in moisture atmosphere, because the wet water vapour is an usual working media in low pressure turbine. After long time in service, the initial structure is changed Some pores were metallographically detected and their aggregation combined with probable coagulation around non-metallic inclusions is observed Those pores can lead to the crack formation. Serious problems may arise due to these non-metallic inclusions since they are surrounded by a number of individual pores or even characteristic "clouds" of pores are formed around inclusions. From the aspect of blade vibrations, the crack will be expected only at some positions. This kind of crack usually is initiated at the blade surface. In another case, when an aggregation process of pores occurs, the coagulation and coarsening of pores may provoke the crack initiation not on the surface, but in the bulk of the blade material. Metallographic investigations were performed using light microscope.
PB  - Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad
C3  - Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012
T1  - Microstructure analysis and crack detection in turbine blades after prolonged exposure in plant
EP  - 510
SP  - 507
UR  - https://hdl.handle.net/21.15107/rcub_rims_189
ER  - 
@conference{
author = "Kovačević, Zorica and Karastojković, Zoran and Aleksić, Vujadin and Janjušević, Zoran",
year = "2012",
abstract = "Turbine blades are one of the most important machine parts in every power generator. Corrosion and/or erosion attack on blades are also available in moisture atmosphere, because the wet water vapour is an usual working media in low pressure turbine. After long time in service, the initial structure is changed Some pores were metallographically detected and their aggregation combined with probable coagulation around non-metallic inclusions is observed Those pores can lead to the crack formation. Serious problems may arise due to these non-metallic inclusions since they are surrounded by a number of individual pores or even characteristic "clouds" of pores are formed around inclusions. From the aspect of blade vibrations, the crack will be expected only at some positions. This kind of crack usually is initiated at the blade surface. In another case, when an aggregation process of pores occurs, the coagulation and coarsening of pores may provoke the crack initiation not on the surface, but in the bulk of the blade material. Metallographic investigations were performed using light microscope.",
publisher = "Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad",
journal = "Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012",
title = "Microstructure analysis and crack detection in turbine blades after prolonged exposure in plant",
pages = "510-507",
url = "https://hdl.handle.net/21.15107/rcub_rims_189"
}
Kovačević, Z., Karastojković, Z., Aleksić, V.,& Janjušević, Z.. (2012). Microstructure analysis and crack detection in turbine blades after prolonged exposure in plant. in Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012
Univ Novi Sad, Fac Tech Sci, Adeko, Novi Sad., 507-510.
https://hdl.handle.net/21.15107/rcub_rims_189
Kovačević Z, Karastojković Z, Aleksić V, Janjušević Z. Microstructure analysis and crack detection in turbine blades after prolonged exposure in plant. in Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012. 2012;:507-510.
https://hdl.handle.net/21.15107/rcub_rims_189 .
Kovačević, Zorica, Karastojković, Zoran, Aleksić, Vujadin, Janjušević, Zoran, "Microstructure analysis and crack detection in turbine blades after prolonged exposure in plant" in Machine and Industrial Design in Mechanical Engineering, Seventh International Symposium, Kod 2012 (2012):507-510,
https://hdl.handle.net/21.15107/rcub_rims_189 .

On-site metallography & replica method for inspection connecting rod material and cracks detection

Kovačević, Zorica; Karastojković, Zoran; Aleksić, Vujadin

(2011)

TY  - CHAP
AU  - Kovačević, Zorica
AU  - Karastojković, Zoran
AU  - Aleksić, Vujadin
PY  - 2011
UR  - http://rims.institutims.rs/handle/123456789/792
T2  - TOYOTARITY
T1  - On-site metallography & replica method for inspection connecting rod material and cracks detection
EP  - 56
SP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_rims_792
ER  - 
@inbook{
author = "Kovačević, Zorica and Karastojković, Zoran and Aleksić, Vujadin",
year = "2011",
journal = "TOYOTARITY",
booktitle = "On-site metallography & replica method for inspection connecting rod material and cracks detection",
pages = "56-41",
url = "https://hdl.handle.net/21.15107/rcub_rims_792"
}
Kovačević, Z., Karastojković, Z.,& Aleksić, V.. (2011). On-site metallography & replica method for inspection connecting rod material and cracks detection. in TOYOTARITY, 41-56.
https://hdl.handle.net/21.15107/rcub_rims_792
Kovačević Z, Karastojković Z, Aleksić V. On-site metallography & replica method for inspection connecting rod material and cracks detection. in TOYOTARITY. 2011;:41-56.
https://hdl.handle.net/21.15107/rcub_rims_792 .
Kovačević, Zorica, Karastojković, Zoran, Aleksić, Vujadin, "On-site metallography & replica method for inspection connecting rod material and cracks detection" in TOYOTARITY (2011):41-56,
https://hdl.handle.net/21.15107/rcub_rims_792 .

Microstructure and characterisation of quality water pipes after 50 years in service

Kovačević, Zorica; Karastojković, Zoran; Aleksić, Vujadin

(Masinski fakultet, Kragujevac, Srbija, 2011)

TY  - CONF
AU  - Kovačević, Zorica
AU  - Karastojković, Zoran
AU  - Aleksić, Vujadin
PY  - 2011
UR  - http://rims.institutims.rs/handle/123456789/786
PB  - Masinski fakultet, Kragujevac, Srbija
C3  - 5th International Quality Conference
T1  - Microstructure and characterisation of quality water pipes after 50 years in service
EP  - 351
SP  - 345
UR  - https://hdl.handle.net/21.15107/rcub_rims_786
ER  - 
@conference{
author = "Kovačević, Zorica and Karastojković, Zoran and Aleksić, Vujadin",
year = "2011",
publisher = "Masinski fakultet, Kragujevac, Srbija",
journal = "5th International Quality Conference",
title = "Microstructure and characterisation of quality water pipes after 50 years in service",
pages = "351-345",
url = "https://hdl.handle.net/21.15107/rcub_rims_786"
}
Kovačević, Z., Karastojković, Z.,& Aleksić, V.. (2011). Microstructure and characterisation of quality water pipes after 50 years in service. in 5th International Quality Conference
Masinski fakultet, Kragujevac, Srbija., 345-351.
https://hdl.handle.net/21.15107/rcub_rims_786
Kovačević Z, Karastojković Z, Aleksić V. Microstructure and characterisation of quality water pipes after 50 years in service. in 5th International Quality Conference. 2011;:345-351.
https://hdl.handle.net/21.15107/rcub_rims_786 .
Kovačević, Zorica, Karastojković, Zoran, Aleksić, Vujadin, "Microstructure and characterisation of quality water pipes after 50 years in service" in 5th International Quality Conference (2011):345-351,
https://hdl.handle.net/21.15107/rcub_rims_786 .