- Jun 15 Mon 2009 22:22
Tool Steel Austempered
- Jun 14 Sun 2009 22:30
紅十字調質 No Good !
- Jun 10 Wed 2009 08:33
SNCM 440 casting
相片N, O, P: 淬火回火後. 枝晶偏析仍存在, 但較緩和. H~L 中的致命的鑄態尖角沃斯田鉄已消失. Ｐhoto N ~ P: Quenched and tempered. dendritic segregation is less severe than as-cast condition. Harmful angular Austenite areas has gone into solution and helped form martensite.
- Jun 08 Mon 2009 15:28
FCD 600 金相
牛眼組織. (bull's eye). 眼珠: 球墨 ; 眼白:肥粒鉄(延伸率靠此相提供); 其餘:波來鉄 (關係硬度 強度). Bull's eye structure in an FCD 600 ductile iron. Eye ball: graphite nodule; white: ferrite; dark color area: pearlite.
- Jun 05 Fri 2009 12:22
合格的 紅十字 調質
K
L- May 27 Wed 2009 10:32
1008低碳鋼/鑄鉄水
When 1008 steel plate meets ductile iron melt. Diffusion occurs at the vinicity of the interface. C% in iron melt diffuses into steel and "carburizes" it.
- May 26 Tue 2009 07:53
ADI
1020 C x 30 min --> 180 C x 30 min. L.B. formed during this 30 min, M form after it was taken out of saltbath and.
- May 25 Mon 2009 08:41
枝晶偏析 2344, SKD 61
