The following topics can be found in this area:
surface decarburization , crystalline structure and
The represented examples don't have to lead to the
failure of the material in every case. These are merely examinations of structure anomalies,
which differs from the standard.
At the enlarged views a measuring function is available.
The measuring spots 1 and 2 get specified with the left mouse button and the distance
between them gets computed on base of the magnification scale. An optical measuring
point marking takes place on the screen by means of little measuring crosses. For the
Measuring accuracy of the different magnifications:
12,5 : 1 ca.
50 : 1 ca.
100 : 1 ca.
200 : 1 ca.
500 : 1 ca.
1000 : 1 ca.
A001 - Distinctive core segregation - 1.7102
A002 - Core segregation with primary carbide accumulation - 1.2379
A003 - Ferrite in the heat treated structure - 1.2249
A004 - Very bad annealing structure - 1.3505
A005 - Partial renewed formation of pearlite - 1.3505
A006 - Strong cementite lattice - 1.2210
A007 - Strong carbide precipitate - 1.4310
A008 - Renewed formation of bainite - 1.6580
A009 - Bad spheroidised annealing structure - 1.7102
A010 - Strong surface decarburization - 1.3505
A011 - Very strong surface decarburization - 1.7102
A012 - Renewed formation of pearlite - 1.7709
A013 - Degenerated pearlite within bainite - 1.7220
A014 - Bad heat treated structure - 1.4718
A015 - Bad heat treated structure - 1.7225
A016 - Stronger core segregation - 1.2381
A017 - Microstructure deformation by scalping - 1.7076
A018 - Friction martensite by scraping - 1.2823
A019 - Coarse carbides by multiple annealing - 1.7034
A020 - Structure influence by separating - 1.6540
A021 - Carburization by soft annealing - 1.7076
A022 - Decarburization at heat treated material - 1.8507
A023 - Strong Decarburization at a billet corner - 1.2516
A024 - Strong complete decarburization - 1.1520
A025 - Fracture through sigma-phase - 1.4462
A026 - Segregation with cementite accumulation - 1.3505
A027 - Torn wire at the drawing through sigma-phase - 1.4462
A028 - Strong core segregation - 1.2210
A029 - Insufficient through-hardening - 1.8519
A030 - Friction martensite by a mechanical damage - 1.8519
A031 - Segregation streaks with sigma-phase - 1.4427
A032 - Breaks by an unfavorable microstructure - 1.4724
A033 - Insufficient austenitization at the quenching - 1.2242
A034 - Renewed formation of pearlite at the spheroidising - 1.7034
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