[1]李波,陈方玉,陈胜,等.20CrMnTi棒材表面混晶及消除方法[J].武汉职业技术学院学报,2013,(03):107-108.
LI Bo CHEN Fang-yu CHEN Sheng WANG Cai-xiang LU He-ming.On Methods of Eliminating Mixed Crystal on 20CrMnTi Work Piece[J].Journal of Wuhan Polytechnic,2013,(03):107-108.
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20CrMnTi棒材表面混晶及消除方法(
)
《武汉职业技术学院学报》[ISSN:1006-6977/CN:61-1281/TN]
- 卷:
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- 期数:
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2013年03期
- 页码:
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107-108
- 栏目:
-
- 出版日期:
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2013-06-30
文章信息/Info
- Title:
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On Methods of Eliminating Mixed Crystal on 20CrMnTi Work Piece
- 文章编号:
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1671-931X （2013） 03-0107-02
- 作者:
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李波; 陈方玉; 陈胜; 汪财翔; 陆鹤鸣
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湖北新冶钢有限公司技术中心，湖北黄石435001
- Author(s):
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LI Bo CHEN Fang-yu CHEN Sheng WANG Cai-xiang LU He-ming
-
Technical Center，Hubei Xinyegang Steel Co., Ltd，Huangshi435001, China
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- 关键词:
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20CrMnTi; 模锻; 混晶; 正火; 热处理
- Keywords:
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20CrMnTi; die forging; mixed crystal; normalizing
- 分类号:
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TG156.4
- 文献标志码:
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A
- 摘要:
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大规格20CrMnTi棒材锻造之后,采用金相显微镜组织分析发现,表层组织不匀,表层晶粒尺寸相差悬殊,细晶粒中伴有粗大的珠光体团,局部混晶严重,为改善表层组织不均匀性,分别经多次正火及等温退火热处理,实验证实,多次正火可以消除局部混晶,并且细化组织;等温退火,也可以消除局部混晶,但偏析带仍较明显;比较而言,多次正火是锻造后较好的热处理工艺。
- Abstract:
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Through metallographic organization analysis, it is found that after forging, the large size round steels
20CrMnTi tend to have inhomogeneous surface tissue which are mainly mixed crystal. Repeated heat treatment test
proves that repeated normalizing can eliminate mixed grain, and refine grains; isothermal heat treatment can also elim原
inate mixed crystal, but with obvious segregation. Comparatively speaking，repeated normalizing can eliminate mixed
crystal with grain refinement, which is a superior technique.
备注/Memo
- 备注/Memo:
-
收稿日期：2013-05-13
作者简介：李波（1982-），男，山东泰安人，湖北新”钢有限公司工程师，研究方向：钢铁失效分析与研究。
更新日期/Last Update:
2013-06-30