Influence of Solution Temperature on Structure and Corrosion Resistance of Plate of Super Duplex Stainless Steel S32750

李国平; 李俊; 张威; 范新智

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Influence of Solution Temperature on Structure and Corrosion Resistance of Plate of Super Duplex Stainless Steel S32750

更新时间：2026-01-21

- Influence of Solution Temperature on Structure and Corrosion Resistance of Plate of Super Duplex Stainless Steel S32750
- Special Steel Vol. 30, Issue 2, Pages: 61-62(2009)
- 作者机构：
  
  太原钢铁(集团)有限公司,太原,030003
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：25 September 2008，
  
  Online First：05 December 2022，
  
  Published：05 December 2009
- 稿件说明：
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李国平, 李俊, 张威, et al. Influence of Solution Temperature on Structure and Corrosion Resistance of Plate of Super Duplex Stainless Steel S32750[J]. Special Steel, 2009, 30(2): 61-62.
DOI：

李国平, 李俊, 张威, et al. Influence of Solution Temperature on Structure and Corrosion Resistance of Plate of Super Duplex Stainless Steel S32750[J]. Special Steel, 2009, 30(2): 61-62. DOI：

摘要

研究了920～1100℃固溶处理温度对S32750钢中板(%:0.022C、25.35Cr、7.17 Ni、4.05Mo、0.28N)组织和6%FeCl

+0.05NHCl溶液耐蚀性的影响。结果表明

≤1000℃固溶处理时

钢中析出脆性σ-相

铁素体含量≤11%

钢的硬度增加

钢的塑性、韧性和耐蚀性急剧下降

于1050～1100℃固溶处理

钢中组织为46%～47%铁素体+奥氏体组织

具有良好的综合力学性能和高的耐蚀性。

Abstract

Influence of solution-treated temperature at 920~1100 ℃ on structure and corrosion resistance of medium plate of steel S32750(%:0.022C

25.35Cr

7.17Ni

4.05Mo

0.28N)in 6%FeCl

+0.05NHCl liquor has been studied. The results showed that with solution-treated at ≤ 1000 ℃

the σ-phase precipitated in steel

the ferrite content in structure was ≤11%

the hardness of steel increased and the plasticity

toughness and corrosion resistance of steel rapidly decreased;and with solution-treated at 1050～1100 ℃

the structure of steel was 46%~47% ferrite +austenite

it had excellent comprehensive mechanical properties and corrosion resistance.

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