该材料的组织怎么定
C%0.38 .Si0.19%.Mn0.57% P0.015%S<0.010前两张是500倍的,后两张200倍的 块状F+P+少量针状F 铁素体+珠光体
回复 2# 米兰妖刀 的帖子
这珠光体是不是太粗了点啊 The data of carbon content is 0.38. if the microscopic structure is P+ F ,We should findaround 49% P in the photo, But now, No more then 30% P was found in the photo,So I think there must have some B in the sample. 原帖由 米兰妖刀 于 2009-6-22 11:59 发表 http://www.rclbbs.com/images/common/back.gif
块状F+P+少量针状F
同意是此说法,,
至于P,有粗有细,,, 应是经过退火的,组织为铁素体+珠光体。
原始组织中有魏氏组织。
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