平衡冷卻(爐冷)才會有此關係. Right? 空冷不遵循 lever rule.
我這試片隨便撿來的, 沒求證成份. 不要太認 ...
3Q 凑字~~~~~~~~~~~~~~~~~ 这些图片制作精良,很多单位都得望图兴叹。这才是做产品质量的精神。 AISI 4340, 880Cx70min, as-quenched. 本帖最后由 leomet 于 2015-9-13 19:09 编辑
AISI 4340, 880Cx70min, as-quenched.
To study the % of non-M remained.
The non-M appears at the sites which were
Ferrite (solute-poor) bands before Austenization. 本帖最后由 leomet 于 2015-10-7 18:12 编辑
Austempered Ductile Iron
The high toughness of ADI comes from the finely interweaving of its L.B.(hard phase) and Austenite(soft phase).
You can imagine how difficult it is for a crack to travel through a matrix like this. 本帖最后由 leomet 于 2015-10-7 18:13 编辑
Ductile iron. Carbide + graphite in the matrix of Pearlite.
Carbide tinted pink. 本帖最后由 leomet 于 2015-8-7 08:54 编辑
M2 HSS, as-cast condition.
35#鋼.................. 老师您太厉害了!金相知识有您的一角,足了…… S45C;750C 淬後 HRC 25;550C回 HRC 14
SCM 440 Austempered structure
本帖最后由 leomet 于 2015-6-5 09:26 编辑夾雜物多了些....................................................... http://www.rclbbs.com//mobcent//app/data/phiz/default/23.pnghttp://www.rclbbs.com//mobcent//app/data/phiz/default/23.pnghttp://www.rclbbs.com//mobcent//app/data/phiz/default/23.png
S35C球粒化...................... 本帖最后由 leomet 于 2017-5-11 17:07 编辑
S45C 調質...........過頭了就成了球粒化退火. 青青园中葵 发表于 2015-5-23 08:47
老师您太厉害了!金相知识有您的一角,足了……
你努力幹到65歲, 到時功力一定超越我. leomet 发表于 2015-7-6 19:05 static/image/common/back.gif
你努力幹到65歲, 到時功力一定超越我.
没有想到大师您能给我回复。感谢您的鼓励!我会努力的,谢谢您。
本帖最后由 leomet 于 2015-9-13 19:07 编辑
Colorful and beautiful ! 实在是太厉害了,这那是金相图片,简直是艺术品。 有没有这类化学试剂的腐蚀方法,很想学习一下,否则看了也没用啊,无法学以致用。
本帖最后由 leomet 于 2015-8-7 08:44 编辑
Lower Bainite 的 碳化物超微粒.
They say I am the best metallurgist in Taiwan. I'd say I am one of the best, and the oldest metallurgist in Taiwan.
No other people in Taiwan still doing the grinding and polishing work at the age of 64. Poor me? Lucky me?