- Mar 08 Mon 2010 20:13
疲勞裂紋 _撞針
- Mar 07 Sun 2010 22:51
冶金上的精度與尺寸上的精度
- Mar 06 Sat 2010 14:25
素材脫碳? Decarb?
- Feb 14 Sun 2010 14:17
Martensite, 1984
Untinted, colors produced naturally. Specimen was from a ductile iron casting severely over-heated because of failure of the temperature controller. Incipient melting occurred, leaving a honey-comb-shape white delineation of carbide on the grainboundaries. This shape has a special meaning----grains grow to their maxima, no more grain growth will continue. Photo taken with ZEISS microscope--an amazing product from Germany.
- Feb 13 Sat 2010 16:37
Intergranular carbide
- Feb 10 Wed 2010 09:41
Martensite, 2009
- Feb 05 Fri 2010 08:30
Cold work steel SKD 11
Too much R. A. was in the matrix of this D2 (SKD 11) cold work tool steel.
- Jan 31 Sun 2010 17:37
Chill test wedge 三角試片
