Date

Changes - The links will take you directly to the appropriate pages

 18.02.2011

 Exemplary description of the proportional microstructure determination :
 Instructions for determining volume fraction

 20.08.2009

 Possibility for the publication of external reports created - Category : External contributions

 26.11.2007

 General revision of some pages with small addition

 05.11.2006

 Material card index with new material number completed
 1.5507 , 1.5525 , 1.6773 , 1.6747 , 1.2101 , 1.4601 , 1.2990 , 1.0214 , 1.5860 , 1.3346
 1.3964 , 1.4120 , 1.2766 , 1.1302 , 1.4545 , 1.0569 , 1.4460 , 1.1140 , 1.7227 , 1.4162
 1.1201 , 1.3344
 Cast iron
 0.6025-l , 0.7060 , 0.7040 , 0.7688 , 0.????-1 , 0.????-2
 Examinations about microstructures 1.7076 , 1.3505 , 1.7176

 04.11.2006

 Material card index with new pictures for following material number completed
 1.4037 , 1.4116 , 1.7160 , 1.4006 , 1.4003 , 1.5523 , 1.7709 , 1.2343 , 1.4028 , 1.7033
 1.6580 , 1.4724 , 1.4310 , 1.4718 , 1.4872 , 1.7016 , 1.7131 , 1.7076 , 1.5408 , 1.5535
 1.7139 , 1.7102 , 1.2767 , 1.5920 , 1.7707 , 1.2242 , 1.2002 , 1.4104 , 1.4057 , 1.4578
 1.4021

 28.02.2006

 General revision of some pages with small addition
 The next greater update will follow within a couple of months

 24.07.2005

 Material card index with new material number completed
 1.1525 , 1.1620 , 1.1820 , 1.2082 , 1.2083 , 1.2713 , 1.4438 , 1.4820 , 1.5023 , 1.5408
 1.5535 , 1.6571 , 1.7108
 Material card index with new pictures for following material number completed
 1.1192 , 1.2008 , 1.2201 , 1.2210 , 1.2242 , 1.2249 , 1.2344 , 1.2381 , 1.2510 , 1.2714
 1.2764 , 1.2767 , 1.2826 , 1.2842 , 1.3343 , 1.3505 , 1.3520 , 1.4003 , 1.4006 , 1.4037
 1.4104 , 1.4122 , 1.4313 , 1.4404 , 1.4571 , 1.4718 , 1.4724 , 1.4872 , 1.4882 , 1.5508
 1.5511 , 1.5920 , 1.6527 , 1.6582 , 1.6919 , 1.7034 , 1.7076 , 1.7131 , 1.7160 , 1.7220
 1.7225 , 1.7258 , 1.8507 , 2.4952 , 0.6015 , 0.7050

 23.07.2005

 Pictures in the category Material defect internal defects F097 , F098
 Examinations about microstructures hardenability at the 1.2242
 Examination at a zinc layer on a plate
 Examination at an case hardened component
 Etchant comparison and microstructure bases (for beginners - german language)
 Program for calculation of the specific weight (german language)
 Examples to color etchings Beraha-I, Beraha-II and Klemm-I you find with the search engine

 06.02.2005

 Material card index with new material number 1.4893 , 1.4509 , 0.6015 , 0.7050
 Material card index with new pictures for 1.4105 , 1.4841 , 1.4307 , 1.4122 , 1.7765
 Material card index with new pictures for 1.4542 , 1.6540 , 1.1545 , 1.4923 , 1.4037
 Material card index with new pictures for 1.2842 , 1.4305 , 1.4005 , 1.7701 , 1.2316
 Material card index with new pictures for 1.4724 , 1.4303 , 1.4427 , 1.4462 , 1.4872
 Material card index with new pictures for 1.1520 , 1.4829 , 1.4571 , 1.4871 , 1.4006

 05.02.2005

 Pictures in the category Material defect A030 , A031 , A032 , A033 , A034
 Pictures in the category Material defect F086 , F087 , F088 , F089 , F090
 Pictures in the category Material defect F091 , F092 , F093 , F094 , F095 , F096
 Examination to the topic Upsetting test

 26.09.2004

 Pictures in the category Material defect A029 , F084 , F085 eingestellt
 Examination to different topics
 Core segregation , Material 1.3401 and patented drawn wire
 Own Comparison series for determination of the amount of ferrite in %

 25.09.2004

 Material card index with new pictures for 1.8159 , 1.3401 , 1.2357 , 1.4923 , 1.5510
 Material card index with new pictures for 1.2316 , 1.1248 , 1.2550 , 1.2363 , 1.2002
 Material card index with new pictures for 1.1249 , 1.4441 , 1.2516
 Material card index with new material number 1.5918 , 1.7258 , 2.4360

 29.08.2004

 General revision and completion of the explanations to the structure in nitrided cases

 21.07.2004

 Material card index with new pictures for 1.2241 , 1.8159 , 1.2714 , 1.2764 , 1.4006
 Material card index with new pictures for 1.5511 , 1.2826 , 1.1231 , 2.4375 , 1.2367
 Material card index with new pictures for 1.3505 , 1.1248 , 1.2235 , 1.7131 , 1.8523
 Material card index with new pictures for 1.8519 , 1.2303 , 1.3536 , 1.5920 , 1.2721
 Material card index with new pictures for 1.2767 , 1.2210 , 1.4113 , 1.7077

 20.07.2004

 Material card index with new material number 1.4536 , 2.4952

 10.07.2004

 At the lower margin the possibility is given, to change from German to Englich or in the
 other direction. The structure of the menus and the main side isn't concerned by it.

 22.06.2004

 Correction of the Excel program "DeLong-diagram" because of a formula fault

 17.05.2004

 Pictures in the category Material defect A025 , A026 , A027 , A028 , F082
 Individual small additions and corrections at the etch reagents
 Additions in the category of the material informations
 Own Comparison series for determination of the amount of sigma-phase in %

 16.05.2004

 Material card index with new pictures for 1.1248 , 1.2210 , 1.4713 , 1.4462 , 1.4305
 Material card index with new pictures for 1.4016 , 1.2249 , 1.6582
 Material card index with new material number 1.4313 , 1.4452 , 1.2764 , 1.3937 , 1.7765
 Material card index with new material number 2.4858 , 2.4617 , 2.4633 , 2.4819 , 2.4851

 13.03.2004

 General revision and correction of small faults

 29.02.2004

 Pictures in the category Material defect A023 , A024 , F080 , F081
 Material card index with new pictures for 1.5513 , 1.5752 , 1.7707
 Material card index with new material number 1.7038 , 1.7218 , 1.2312
 Examination to different topics
 nitrided case , carburization and decarburization

 07.02.2004

 Introduction of a more efficient Search engine for the pages of this homepage
 Pictures in the category Material defect F074 , F075 , F076 , F077 , F078 , F079
 Pictures in the category Material defect A019 , A020 , A021 , A022
 Examples of surface decarburization measuring at different material numbers
 Examination at a pump vane out of cast steel

 06.02.2004

 Material card index with new pictures for 1.2365 , 1.6527 , 1.4006 , 1.4401 , 1.7264
 Material card index with new pictures for 1.7039 , 1.8507 , 1.2381 , 1.4016 , 1.4828
 Material card index with new pictures for 1.4021 , 1.5513 , 1.1520
 Material card index with new material number 1.1122 , 1.7075 , 1.3541 , 1.7326 , 1.3207
 Material card index with new material number 1.4597 , 1.4429 , 1.4541

 23.11.2003

 Material defects partitioned in Surface defects , Internal defects and Anomalies
 Pictures in the category Material defect F071 , F072 , F073
 Pictures in the category Material defect A001 to A018
 Own Comparison series for determination of the amount of delta-ferrite in %
 New specification for the grain size determination DIN EN ISO 643

 22.11.2003

 Material card index with new pictures for 1.2249 , 1.7102 , 1.6540 , 1.2379 , 1.2550
 Material card index with new pictures for 1.1213 , 1.2008 , 1.2381 , 1.4104 , 1.2714
 Material card index with new material number 1.2316 , 1.1231 , 1.2823 , 1.5028 , 1.6919
 Material card index with new material number 2.4145

 21.09.2003

 Completely revised measuring function in the enlarged represented pictures
 Pictures in the category Material defect F059 , F060 , F061 , F062 , F063 and F064
 Pictures in the category Material defect F065 , F066 , F067 , F068 , F069 and F070
 Pictures of Segregation distribution at 1.0570

 20.09.2003

 Examination of a surface hardening Bearing bush out of 1.3505
 Material card index with new pictures for 1.4307 , 1.2002 , 1.0570 , 1.8161 , 1.2381
 Material card index with new pictures for 1.4841 , 1.2249 , 1.2379 , 1.2103 , 1.3343
 Material card index with new material number 1.5710 , 1.0562 , 1.4862 , 1.2008 , 1.2369

 09.06.2003

 Pictures in the category Material defect F057 and F058
 Material card index with new material number 1.4548 , 1.2790 , 1.5231
 Examination at Jominy sample with material number 1.6541
 Examinations about microstructures heat treatability at the 1.2201

 08.06.2003

 Material card index with new pictures for 1.2357 , 1.4034 , 1.4037 , 1.4418
 Material card index with new pictures for 1.7176 , 1.4016 , 1.7321 , 1.1206 , 1.7709
 Material card index with new pictures for 1.5919 , 1.4116 , 1.4028 , 1.2721 , 1.5510

 03.06.2003

 Diagrams for transformations at steel
 Iron-Carbon , TTT-isothermal , TTT-continuous , Schaeffler , De Long , WRC-1992
 Excel programs with calculations of the Cr and Ni Equivalents as well as graphics

 06.04.2003

 Pictures in the category Material defect F051 , F052 , F053 , F054 , F055 and F056
 Material card index with new material number 1.5508 , 1.7033 , 1.7701
 Material card index with new material number 1.3520 , 1.4501 , 1.2365

 05.04.2003

 Material card index with new pictures for 1.7176 , 1.6580 , 1.1545 , 1.1213
 Material card index with new pictures for 1.2510 , 1.2201 , 1.4057 , 1.3505 , 1.2249
 Material card index with new pictures for 1.4713 , 1.7035 , 1.6582 , 1.7709 , 1.4404
 Material card index with new pictures for 1.2343 , 1.4034 , 1.2328 , 1.6546

 23.02.2003

 Pictures in the category Material defect F048 , F049 and F050
 Pictures of Segregation distribution at 1.7147
 Material card index with new material number 1.2162 , 1.4406

 22.02.2003

 Material card index with new pictures for 1.1545 , 1.4016 , 1.4401 , 1.8159 , 1.7102
 Material card index with new pictures for 1.2002 , 1.7707 , 1.2767 , 1.7139 , 1.4301

 25.01.2003

 Pictures in the category Material defect F045 , F046 and F047
 Pictures of Carbide distribution at 1.2210
 Examinations about Crystalline structure in a segregation zone 1.2249

 24.01.2003

 Material card index with new pictures for 1.4034 , 1.4436 , 1.2210
 Material card index with new pictures for 1.4037 , 1.2381 , 1.2379

 19.01.2003

 Material card index with new pictures for 1.8159 , 1.2103 , 1.5752
 Material card index with new pictures for 1.2249 , 1.7076 , 1.4841
 Pictures of Segregation distribution at 1.2103 und 1.7102

 18.01.2003

 The sector of the material defects is now also available in English

 05.01.2003

 The sector of the examinations is now also available in English

 02.01.2003

 The complete sector of the material card index is now also available in English

 22.12.2002

 Material card index with new material number 1.6565 , 1.5511
 Material card index with new pictures for 1.4351 , 1.2714
 Pictures in the category Material defect F041 , F042 , F043 and F044

 17.12.2002

 Material card index with new material number 1.1249

 15.12.2002

 General revision of all pages, with regard to the introduction of the search engine
 Introduction of the Search engine for the pages of this homepage

 14.12.2002

 Material card index with new material number 1.4332
 Material card index with new pictures for 1.7076
 Pictures in the category Material defect F039 and F040
 Examinations about Crystalline structure in a segregation zone 1.2344

 09.12.2002

 Zoom-Picture introduced in Segregation zone at 1.2510
 Examinations about Hard chromium plated layer on a driving shift

 08.12.2002

 Examinations about Crystalline structure in a welding seam
 Examinations about Crystalline structure in a segregation zone 1.2510
 Pictures of Segregation distribution at 1.2826

 07.12.2002

 Examinations about Grain growth at 1.4441
 Pictures in the category Material defect from F030 to F038
 Material card index with new pictures for 1.2242 , 1.7034 , 1.4872
 Material card index with new material numbers 1.1192 und 1.2067

 24.11.2002

 Examinations about Grain growth and scale build-up at 1.3912
 New pictures in the category Material defect F029
 Material card index with new pictures for 1.2357 , 1.6546

 23.11.2002

 Material card index with new material number 1.3912
 Pictures of Segregation distributions at 1.6541 and 1.6546
 Material card index with new pictures for 1.7168 , 1.4427 , 1.4104 , 1.6541 , 1.4404

 14.11.2002

 First examinations in the category Material defect

 10.11.2002

 Examinations to the Sigma-phase extended and completed with new pictures
 Examinations to the Delta-ferrit
 Measuring function revised and introduced at the examinations

 09.11.2002

 Material card index with new material numbers 1.4351 , 1.4455
 Pictures of Segregation distribution at 1.8507
 Material card index with new pictures for 1.8507 , 1.4108 , 1.4307

 28.10.2002

 Material card index with new pictures for 1.4872 , 1.4462

 27.10.2002

 Pictures of Segregation distributions at 1.2510 , 1.7160 , 1.5920 , 1.8519
 1.7131 , 1.6527 , 1.5919 , 1.7077 , 1.5752 , 1.7035 , 1.2343 , 1.3505
 Pictures of Carbide distribution at 1.3505

 26.10.2002

 Material card index with new material numbers 1.1206 , 2.4375
 Material card index with new pictures for 1.2381 , 1.7077 , 1.4418 , 1.4301 ,1.5752

 14.10.2002

 Measuring function introduced at the picture extensions of the material card index

 06.10.2002

 Pictures of Segregation distributions at 1.6540 , 1.5523 , 1.7039 , 1.8159

 05.10.2002

 Material card index with new material numbers 1.4529 , 1.3401

 28.09.2002

 Pictures of Segregation distributions at 1.7076 , 1.7220 , 1.7139 , 1.7709 , 1.2201

 27.09.2002

 Pictures of Segregation distributions at 1.4718 , 1.2344
 Pictures of Carbide distributions at 1.4037 , 1.2201 , 1.4116

 22.09.2002

 Examinations of Segregation distributions at different materials

 21.09.2002

 Material card index with new pictures for 1.1213 , 1.2550 , 1.6582

 20.09.2002

 Material card index with new material number 1.4512

 19.09.2002

 Material card index with new pictures for 1.4742 , 1.2249 , 1.5510 , 1.6522 ,1.2210

 16.09.2002

 Material card index with new material numbers 1.7311 , 1.4469 , 1.2833 , 2.4831

 15.09.2002

 Material card index with new pictures for 1.5513

 07.08.2002

 Material card index with new material numbers 1.4923 , 1.6312

 06.08.2002

 Material card index with new material numbers 1.4005 , 1.4106 , 1.4762

 04.08.2002

 Material card index with new material numbers 1.0411 , 1.7228 , 1.5527 , 1.0401

 03.08.2002

 Material card index with new material numbers 1.1248 , 1.7015 , 1.0511 , 1.0302

 02.08.2002

 Material card index with new pictures for 1.4742 , 1.2328 , 1.1152

 29.07.2002

 Material card index with new material numbers 1.0718 , 1.7016 , 1.0301 , 1.0485

 27.07.2002

 Material card index with new material numbers 1.2367 , 1.1563 , 1.1132 , 1.1152

 26.07.2002

 Material card index with new material numbers 1.0402 , 1.0503 , 1.0715 , 1.8161

 25.07.2002

 Material card index with new material number 2.4816

 24.07.2002

 Material card index with new material numbers 1.4871 , 1.4882

 23.07.2002

 Examinations at Jominy sample with material number 1.7168 , 1.6587 and 1.7030

 22.07.2002

 Material card index with new material numbers 1.1269 , 1.6758

 15.07.2002

 Examinations at Jominy sample with material number 1.7002 and 1.5752

 14.07.2002

 Microstructure examinations at Sigma-Phase described

 13.07.2002

 Microstructure examinations at Jominy sample (end quench sample) described

 12.07.2002

 Material card index with new pictures for 1.4306 , 1.2242 , 1.2243 , 1.2550 , 1.2516

 11.07.2002

 Material card index with new pictures for 1.4435 , 1.4791

 10.07.2002

 Material card index with new material number 1.4316

 09.07.2002

 Material card index with new pictures for 1.2842 , 1.2210 , 1.5513

 02.07.2002

 Material card index with new material number 1.3536

 01.07.2002

 Material card index with new pictures for 1.4872

 30.06.2002

 Material card index with new material numbers 1.4300 , 1.4003

 29.06.2002

 Material card index with new pictures for 1.4021 , 1.4441 , 1.4028

 27.06.2002

 Material card index with new pictures for 1.2842 , 1.4104 , 1.4122 , 1.4310 , 1.7176

 16.06.2002

 Material card index with new material numbers 1.4578 , 1.4028

 15.06.2002

 Material card index with new pictures for 1.2002 , 1.5920

 03.06.2002

 Material card index with new material number 1.4713

 01.06.2002

 Material card index with new material numbers 1.0501 , 1.2721 , 1.7264 , 1.2303

 31.05.2002

 Material card index with new pictures for 1.2381 , 1.2510 , 1.4057

 26.05.2002

 Material card index with new pictures for 1.5513 , 1.2344 , 1.2516 , 1.8519 , 1.2550

 13.05.2002

 Material card index with new pictures for 1.4057 , 1.4571 , 1.7709 , 1.4037 , 1.2826

 05.05.2002

 Material card index with new material numbers 1.4546 , 1.4576 , 1.4724 , 1.2241

 02.05.2002

 Diashow with a representative cross-section of metallography available on the home page

 29.04.2002

 Material card index with new pictures for 1.2210 , 1.4113 , 1.4021 , 1.4370

 28.04.2002

 Material card index with new pictures for 1.4462 , 1.1191 , 1.4303 , 1.7220 , 1.6527

 18.04.2002

 Material card index with new material number 1.2002

 17.04.2002

 Material card index with new pictures for 1.1545 , 1.7102 , 1.5919

 15.04.2002

 Material card index with new pictures for 1.4034 , 1.4105 , 1.2249 , 1.8159 , 1.4567

 14.04.2002

 Material card index with new pictures for 1.6580 , 1.7321 , 1.4016 , 1.4542 , 1.4306

 05.04.2002

 Customization of some pages with regard to InternetExplorer 6.0 , Netscape 6.2 , Opera 6.0

 20.03.2002

 The home page Metallograf goes to the internet

 26.12.2001

 The programming of the HTML pages takes his beginning

 15.03.2001

 The work with the storage of pictures has started

 01.03.2001

 To this home page the idea became born