Microstructure and Properties of Low-nickel Austenitic Stainless Steel14.0Cr-1.1Ni-9.2Mn-0.30Cu

吴海林; 陈小龙; 钱学海; 曾垚; 陈盛淋

doi:10.20057/j.1003-8620.2022-00055

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Microstructure and Properties of Low-nickel Austenitic Stainless Steel14.0Cr-1.1Ni-9.2Mn-0.30Cu

更新时间：2026-01-21

- Microstructure and Properties of Low-nickel Austenitic Stainless Steel14.0Cr-1.1Ni-9.2Mn-0.30Cu
- Special Steel Vol. 44, Issue 1, Pages: 72-77(2023)
- 作者机构：
  
  1. 广西柳钢华创科技研发有限公司,南宁,530029
  2. 广西柳州钢铁集团有限公司技术中心,柳州,545002
  3. 广西柳钢中金不锈钢有限公司,玉林,537624
- 作者简介：
- 基金信息：
- DOI：10.20057/j.1003-8620.2022-00055
  CLC：
- Received：29 July 2022，
  
  Online First：31 January 2023，
  
  Published：31 January 2023
- 稿件说明：
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吴海林, 陈小龙, 钱学海, et al. Microstructure and Properties of Low-nickel Austenitic Stainless Steel14.0Cr-1.1Ni-9.2Mn-0.30Cu[J]. Special Steel, 2023, 44(1): 72-77.
DOI：

吴海林, 陈小龙, 钱学海, et al. Microstructure and Properties of Low-nickel Austenitic Stainless Steel14.0Cr-1.1Ni-9.2Mn-0.30Cu[J]. Special Steel, 2023, 44(1): 72-77. DOI： 10.20057/j.1003-8620.2022-00055.

摘要

在13.36Cr-1.12Ni-11.2Mn节镍型奥氏体不锈钢基础上降Mn加Cu

优化开发14.0Cr-1.1Ni-9.2Mn-0.30Cu不锈钢，并研究不同化学成分奥氏体不锈钢固溶处理、冷轧退火后的金相组织、显微织构、力学性能及成形性能，分析了奥氏体稳定性和冷轧形变诱导马氏体相变的控制规律。结果表明：14.0Cr-1.1Ni-9.2Mn-0.30Cu与13.36Cr-1.12Ni-11.2Mn不锈钢力学性能相当，固溶处理、冷轧退火后奥氏体组织再结晶充分，冷轧平均晶粒尺寸分别为12.6μm、14.0μm

显微织构为铜织构{112}<111>;14.00Cr-1.1Ni-9.2Mn-0.30Cu不锈钢的杯突值和极限拉深比分别为16.15和0.46

优于13.36Cr-1.12Ni-11.2Mn不锈钢；14.0Cr-1.1Ni-9.2Mn-0.30Cu与13.36Cr-1.12Ni-11.2Mn钢Md30/50分别为87.02℃和83.55℃

Md30/50高，则奥氏体稳定性差，形变诱导马氏体量和冷轧变形抗力大，退火后硬度高。通过将冷轧退火工艺速度由10 m/min降低至9 m...

Abstract

14.0Cr- 1. 1Ni-9.2Mn-0.30Cu stainless steel was developed on the basis of13.36Cr- 1. 12Ni- 11.2Mn low-nickel austenitic stainless steel

and the metallographic structure

microstructure

mechanical properties and forming properties of austenitic stainless steel with different chemical compositions after solution treatment and cold-rolled annealing are studied

as well as the control laws of austenite stability and cold rolling deformation induced martensitic transformation were analyzed. The results show that the mechanical properties of 14.0Cr- 1. 1Ni-9.2Mn-0.30Cu and that of 13.36Cr- 1. 12Ni- 11.2Mn stainless steel are equivalent

the austenitic structure is fully recrystallized after solution treatment and cold-rolled annealing

the average grain size of cold rolling is 12.6 μm and 14.0 μm respectively

and the microstructure is copper texture{112}<111>the IE (bulge test impression endurance value)and LDR (Limited Drawing Ratio) of 14.0Cr- 1. 1Ni-9.2Mn-0.30Cu stainless steel are 16.15 and 0.46 respectively

which are better than those of 13.36Cr- 11.2Mn stain- less steel

and the Md30/50 temperature of 14.0Cr- 1. 1Ni-9.2Mn-0.30Cu and 13.36Cr- 1. 12Ni- 11.2Mn stainless steel are 87.02 ℃ and 83.55 ℃ respectively

as Md30/50 high

the austenite stability poor

the deformation introducing martensite volume and cold-rolled deformation resistance increasing

the hardness of annealed steel high. But the hardness after annealing can be improved by reducing the speed of cold-rolled annealing process from 10 m/min to9 m/min.

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