Effect of Slab Mold Feeding RE on Inclusions and Low Temperature Toughness of Steel 30CrMnMo

陈本文; 苏春霞; 赵刚; 付超; 杨昕; 杨成

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Effect of Slab Mold Feeding RE on Inclusions and Low Temperature Toughness of Steel 30CrMnMo

更新时间：2026-01-21

- Effect of Slab Mold Feeding RE on Inclusions and Low Temperature Toughness of Steel 30CrMnMo
- Special Steel Vol. 38, Issue 5, Pages: 65-67(2017)
- 作者机构：
  
  1. 海洋装备用金属材料及其应用国家重点实验室,鞍山,114009
  2. 鞍钢股份技术中心,鞍山,114009
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：27 April 2017，
  
  Online First：18 July 2022，
  
  Published：18 July 2017
- 稿件说明：
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陈本文, 苏春霞, 赵刚, et al. Effect of Slab Mold Feeding RE on Inclusions and Low Temperature Toughness of Steel 30CrMnMo[J]. Special Steel, 2017, 38(5): 65-67.
DOI：

陈本文, 苏春霞, 赵刚, et al. Effect of Slab Mold Feeding RE on Inclusions and Low Temperature Toughness of Steel 30CrMnMo[J]. Special Steel, 2017, 38(5): 65-67. DOI：

摘要

在300mm×1950mm板坯结晶器宽面中心两侧500 mm处向30CrMnMo钢（/%:0.31C，0.48Si，1.44Mn，0.011P，0.001S，1.20Cr，0.71Mo，0.040Als）喂入0.017%RE。分析结果表明

稀土收得率95%以上

在钢中分布均匀

改变了钢中夹杂物形态

大多数夹杂呈球状

与不加RE 30CrMnMo调质钢相比

含0.017%RE 30CrMnMo钢60 mm板调质后-40℃冲击功(KV2)由50.9~56.6 J提高至77.6~81.6 J。

Abstract

0.017% RE is fed in steel 30CrMnMo (/% : 0.31C

0. 48Si

1.44Mn

0.011P

0.001S

1.20Cr

0.71Mo

0.040Als) at both side distance 500 mm from broad face center of 300 mm X 1950 mm slab mold. Analysis results show that the yield of RE is more than 95%

the distribution of RE in steel is uniform

the inclusions in steel is modified and most inclusions are spheroidal; as compared with quenched-tempered non-adding RE steel 30CrMnMo

the impact energy ( KV2) at -40℃ of quenched-tempered 60mm plate steel 30CrMnMo containing 0.017% RE increases from 50.9~56.6 J to 77.6~81.6 J.

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