Call for participation
WiKiMicroGraphia will announce prizes for the best uploaded micrographs under student category. Prizes will be given during the student conference "Behind the Teachers Desk (BTTD-13)" in March 2013 at CSIR-National Metallurgical Laboratory, Jamshedpur, India.
Participants of metallography contest of IIM-ATM may upload images in this site. Best microstructure will receive prizes in general category.
Hurry! Start uploading Micrographs to share with the world!
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Unexpected localized dendritic microstructure
This microstructure is not yet approved by reviewer.
Material (Name/Designation/Grade):
EN31 steel Material Condition (Heat treatment/Service history/Source):
Oil Quenched Device:
Optical Microscope (Hot Stage) Morphology of BOF lance skull
Material (Name/Designation/Grade):
Lance skull Material Condition (Heat treatment/Service history/Source):
Skull deposited around the BOF lance Device:
SEM Morphology of lance skull deposited on the BOF lance during blow
Material (Name/Designation/Grade):
Lance Skull/Slag Sample Material Condition (Heat treatment/Service history/Source):
Slag/skull deposited on the BOF lance during blow Device:
SEM Microstructure of Grey cast Iron
This microstructure is not yet approved by reviewer.
Material (Name/Designation/Grade):
2.80C Material Condition (Heat treatment/Service history/Source):
Cast; Hardness: 170 HB Device:
SEM TEM bright field images of G-X 12 CrMoVWNbN 1011 (G-911) steel (used in ultra-supercritical steam cycle application) in as heat treated and crept condition
Material (Name/Designation/Grade):
G-X 12 CrMoVWNbN 1011 (G-911) Material Condition (Heat treatment/Service history/Source):
normalised at 1053 K for 8 h, hardening by forced air cooling after soaking at 1363 K for 8 h, tempering at 1003 K for 8 h followed by air cooling, stress relieiving at 1003 K for 8 h by furnace cooling to 523 K Device:
TEM (Philips CM-200Kv interfaced with EDS) The formation of Laves phase and its effect in aged G-911 steel for ultra super critical steam cycle boilers.
Material (Name/Designation/Grade):
G-X 12 CrMoVWNbN 1011 (G-911) Material Condition (Heat treatment/Service history/Source):
Normalised at 1053 K for 8 h, hardening by forced air cooling after soaking at 1363 K for 8 h, further, tempering at 1003 K for 8 h followed by air cooling. Stress relieving at 1003 K for 8 h by furnace cooling to 523 K . Ageing heat treatment: at 923 K for 1200 h and then upgraded to 973 K for 300 h.( this ageing treatment simulates to the service ageing at 873 K for 100,000 h) Device:
SEM / Light optical Microscope INTERGRANULAR CREEP FRACTURE BEHAVIOUR OF SS-304LN STEEL
Material (Name/Designation/Grade):
SS-304LN Material Condition (Heat treatment/Service history/Source):
THICK WALLED PIPE, SOLUTION ANNEALED AT 980 C FOR 8 HOURS AND FURNACE COOLED Device:
SEM Fracture criteria of Ni-base super-alloy (Ni-80A) under creep condition
Material (Name/Designation/Grade):
Ni-base super-alloy (Ni-80A) Material Condition (Heat treatment/Service history/Source):
soaked under vacuum at 1080 C for 8 h, air cooled & then tempered under vacuum at 700 C for 16 h, then air cooling. Device:
SEM TEM bright field images of G-X 12 CrMoVWNbN 1011 G-911 in aged (100,000 h at 600 C in air) condition
This microstructure is not yet approved by reviewer.
Material (Name/Designation/Grade):
G-X 12 CrMoVWNbN 1011 G-911 Material Condition (Heat treatment/Service history/Source):
Normalised at 1053 K for 8 h, hardening by forced air cooling after soaking at 1363 K for 8 h, tempering at 1003 K for 8 h followed by air cooling, stress relieiving at 1003 K for 8 h by furnace cooling to 523 K . ageing heat treatment: ageing at 923k for 1200 h ,upgraded to the ageing at 973 K for 300 h.( this ageing treatment provides an equivalent ageing of 100,000 h at 873 K in air.) Device:
TEM (Philips CM-200Kv interfaced with EDS) Deterioration of microstructure of G-911 steel (used in ultra-super critical steam cycle application) in aged steel under creep condition
Material (Name/Designation/Grade):
G-X 12 CrMoVWNbN 1011 (G-911) Material Condition (Heat treatment/Service history/Source):
Normalised at 1053 K for 8 h, hardening by forced air cooling after soaking at 1363 K for 8 h, further, tempering at 1003 K for 8 h followed by air cooling. Stress relieving at 1003 K for 8 h by furnace cooling to 523 K . Ageing heat treatment: at 923 K for 1200 h and then upgraded to 973 K for 300 h.( this ageing treatment simulates to the service ageing at 873 K for 100,000 h) Device:
TEM (Philips CM-200Kv interfaced with EDS)