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Failure analysis of high temperature superheater tube (HTS) of a pulverized coal-fired power station

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@article{IJASEIT105,
   author = {Md. Mujibur Rahman and Ahmad Kamal Kadir},
   title = {Failure analysis of high temperature superheater tube (HTS) of a pulverized coal-fired power station},
   journal = {International Journal on Advanced Science, Engineering and Information Technology},
   volume = {1},
   number = {5},
   year = {2011},
   pages = {517--522},
   keywords = {High temperature superheater (HTS) tube; coal-fired boiler; localized overheating; visual inspection; microstructure evaluation},
   abstract = {This paper presents the failure investigation of high temperature superheater (HTS) tubes.  Samples were collected from one of the coal fired power plants in Malaysia, namely, Stesen Janakuasa Sultan Azlan Shah, Manjung (Manjung Power Station).  After eight years of non-continuous services of three boilers, welded support-clips were completely separated (detached) from (HTS) tubes, which caused the wall thinning.  Collected failed samples were undergone several experimental investigations including visual inspection, thickness measurement, Vickers hardness testing, and microstructure evaluation.  The results revealed that some cracks were initiated at the heat-affected zone (HAZ) and propagated partly throughout the weld metal. The estimation on operating temperature and operating hoop stress show indication that the specimen may experienced a hig operating temperature. Other findings confirmed that the detachment of welded support-clips from HTS tubes may also caused by dissimilar metal weld (DMW) failure due to the differences in expansion properties of parent metal and weld metal.},
   issn = {2088-5334},
   publisher = {INSIGHT - Indonesian Society for Knowledge and Human Development},
   url = {http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=105},
   doi = {10.18517/ijaseit.1.5.105}
}

EndNote

%A Rahman, Md. Mujibur
%A Kadir, Ahmad Kamal
%D 2011
%T Failure analysis of high temperature superheater tube (HTS) of a pulverized coal-fired power station
%B 2011
%9 High temperature superheater (HTS) tube; coal-fired boiler; localized overheating; visual inspection; microstructure evaluation
%! Failure analysis of high temperature superheater tube (HTS) of a pulverized coal-fired power station
%K High temperature superheater (HTS) tube; coal-fired boiler; localized overheating; visual inspection; microstructure evaluation
%X This paper presents the failure investigation of high temperature superheater (HTS) tubes.  Samples were collected from one of the coal fired power plants in Malaysia, namely, Stesen Janakuasa Sultan Azlan Shah, Manjung (Manjung Power Station).  After eight years of non-continuous services of three boilers, welded support-clips were completely separated (detached) from (HTS) tubes, which caused the wall thinning.  Collected failed samples were undergone several experimental investigations including visual inspection, thickness measurement, Vickers hardness testing, and microstructure evaluation.  The results revealed that some cracks were initiated at the heat-affected zone (HAZ) and propagated partly throughout the weld metal. The estimation on operating temperature and operating hoop stress show indication that the specimen may experienced a hig operating temperature. Other findings confirmed that the detachment of welded support-clips from HTS tubes may also caused by dissimilar metal weld (DMW) failure due to the differences in expansion properties of parent metal and weld metal.
%U http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=105
%R doi:10.18517/ijaseit.1.5.105
%J International Journal on Advanced Science, Engineering and Information Technology
%V 1
%N 5
%@ 2088-5334

IEEE

Md. Mujibur Rahman and Ahmad Kamal Kadir,"Failure analysis of high temperature superheater tube (HTS) of a pulverized coal-fired power station," International Journal on Advanced Science, Engineering and Information Technology, vol. 1, no. 5, pp. 517-522, 2011. [Online]. Available: http://dx.doi.org/10.18517/ijaseit.1.5.105.

RefMan/ProCite (RIS)

TY  - JOUR
AU  - Rahman, Md. Mujibur
AU  - Kadir, Ahmad Kamal
PY  - 2011
TI  - Failure analysis of high temperature superheater tube (HTS) of a pulverized coal-fired power station
JF  - International Journal on Advanced Science, Engineering and Information Technology; Vol. 1 (2011) No. 5
Y2  - 2011
SP  - 517
EP  - 522
SN  - 2088-5334
PB  - INSIGHT - Indonesian Society for Knowledge and Human Development
KW  - High temperature superheater (HTS) tube; coal-fired boiler; localized overheating; visual inspection; microstructure evaluation
N2  - This paper presents the failure investigation of high temperature superheater (HTS) tubes.  Samples were collected from one of the coal fired power plants in Malaysia, namely, Stesen Janakuasa Sultan Azlan Shah, Manjung (Manjung Power Station).  After eight years of non-continuous services of three boilers, welded support-clips were completely separated (detached) from (HTS) tubes, which caused the wall thinning.  Collected failed samples were undergone several experimental investigations including visual inspection, thickness measurement, Vickers hardness testing, and microstructure evaluation.  The results revealed that some cracks were initiated at the heat-affected zone (HAZ) and propagated partly throughout the weld metal. The estimation on operating temperature and operating hoop stress show indication that the specimen may experienced a hig operating temperature. Other findings confirmed that the detachment of welded support-clips from HTS tubes may also caused by dissimilar metal weld (DMW) failure due to the differences in expansion properties of parent metal and weld metal.
UR  - http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=105
DO  - 10.18517/ijaseit.1.5.105

RefWorks

RT Journal Article
ID 105
A1 Rahman, Md. Mujibur
A1 Kadir, Ahmad Kamal
T1 Failure analysis of high temperature superheater tube (HTS) of a pulverized coal-fired power station
JF International Journal on Advanced Science, Engineering and Information Technology
VO 1
IS 5
YR 2011
SP 517
OP 522
SN 2088-5334
PB INSIGHT - Indonesian Society for Knowledge and Human Development
K1 High temperature superheater (HTS) tube; coal-fired boiler; localized overheating; visual inspection; microstructure evaluation
AB This paper presents the failure investigation of high temperature superheater (HTS) tubes.  Samples were collected from one of the coal fired power plants in Malaysia, namely, Stesen Janakuasa Sultan Azlan Shah, Manjung (Manjung Power Station).  After eight years of non-continuous services of three boilers, welded support-clips were completely separated (detached) from (HTS) tubes, which caused the wall thinning.  Collected failed samples were undergone several experimental investigations including visual inspection, thickness measurement, Vickers hardness testing, and microstructure evaluation.  The results revealed that some cracks were initiated at the heat-affected zone (HAZ) and propagated partly throughout the weld metal. The estimation on operating temperature and operating hoop stress show indication that the specimen may experienced a hig operating temperature. Other findings confirmed that the detachment of welded support-clips from HTS tubes may also caused by dissimilar metal weld (DMW) failure due to the differences in expansion properties of parent metal and weld metal.
LK http://ijaseit.insightsociety.org/index.php?option=com_content&view=article&id=9&Itemid=1&article_id=105
DO  - 10.18517/ijaseit.1.5.105