An Analysis on Macrostructure Central Dark Zone Defect of Φ180mm Bar of Stainless Steel 2Cr12NiMoW1V and Annealing Process Improvement

卫争艳; 史普辑

您当前的位置：

首页 >

文章列表页 >

An Analysis on Macrostructure Central Dark Zone Defect of Φ180mm Bar of Stainless Steel 2Cr12NiMoW1V and Annealing Process Improvement

更新时间：2026-01-21

- An Analysis on Macrostructure Central Dark Zone Defect of Φ180mm Bar of Stainless Steel 2Cr12NiMoW1V and Annealing Process Improvement
- Special Steel Vol. 39, Issue 2, Pages: 44-46(2018)
- 作者机构：
  
  1. 太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室,太原,030003
  2. 山西太钢不锈钢股份有限公司型材厂,太原,030003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：23 November 2017，
  
  Online First：01 July 2022，
  
  Published：01 July 2018
- 稿件说明：
移动端阅览
卫争艳, 史普辑. An Analysis on Macrostructure Central Dark Zone Defect of Φ180mm Bar of Stainless Steel 2Cr12NiMoW1V and Annealing Process Improvement[J]. Special Steel, 2018, 39(2): 44-46.
DOI：

卫争艳, 史普辑. An Analysis on Macrostructure Central Dark Zone Defect of Φ180mm Bar of Stainless Steel 2Cr12NiMoW1V and Annealing Process Improvement[J]. Special Steel, 2018, 39(2): 44-46. DOI：

摘要

2Cr12NiMo1W1V钢Φ180mm棒材的生产工艺流程为80t BOF-VD-LF-ESR 6t锭-锻造-900℃退火。2Cr12NiMo1W1V不锈钢棒材成品低倍组织中出现GB/T1979-2001《结构钢低倍组织缺陷评级图》中无对应类型的中心黑色腐蚀区域缺陷

分析得出

该钢退火后的正常组织为铁素体基体+碳化物

而中心区域为板条马氏体+托氏体

托氏体耐腐蚀性差

形成黑色区域。将原先的退火工艺优化为900℃-700℃等温退火工艺

可保证全截面组织的均匀转变。该工艺可消除和避免2Cr12NiMo1W1V钢棒材中心黑色区域。

Abstract

The production process flowsheet of Φ180mm bars of steel 2Cr12NiMo1W1V is 80t BOF-VD-LF-ESR 6t ingot-forging-900°C annealing. The central dark zone defect which un-corresponding to GB/T1979-2001 "Standard diagram for Macrostructure and Defect of Structural Steels" occurs in macrostructure of stainless steel 2Cr12NiMo1W1V finished products. By analysis it is obtained that the normal structure of the annealed steel is ferrite matrix+carbide

while the structure in central zone is lath martensite+troostite

the corrosion resistance of troostite is poor to form dark etched zone. The original annealing process is optimized to 900℃-700°C isothermal annealing process it shall be to ensure homotransformation of structure in whole section of bar

this process can eliminate and avoid the formation of bar central dark zone of steel 2Cr12NiMo1W1V.

关键词

Keywords

references

Views

下载量

CSCD

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

3-Demensional Finite Element Simulation on Continuous Rolling Φ100 mm Steel 42CrMo by 200 mm x200 mm Cast Bloom

Effect of Primary Recrystallization Annealing Process on Structure and Texture of 3%Si Oriented Silicon Steel

Finite Element Simulation on Continuous Rolling Process of Bearing Steel GCrl5

Development of 80MnCr Steel Bar for Grinding Ball by 70t-BOF-LF-VD-CC-HR Flowsheet

An Analysis on Wire Fracture in Cold-Drawing of Ferrite Stainless Steel 0Cr13C and Process Improvement

Related Author

洪慧平

赵爱民

康永林

魏军

魏俊杰

栾梦君

田云静

孙宏云

Related Institution

北京科技大学材料科学与工程学院

承德建龙特殊钢有限公司

武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室

辽宁科技大学材料与冶金学院

山东寿光巨能特钢有限责任公司，寿光

⁰