Effect of Forging and Conditioning Heat Treatment on Grain Size of Super-High Strength Steel 23Co-Ni

王瑞; 龚伟; 姜周华; 薛向欣

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Effect of Forging and Conditioning Heat Treatment on Grain Size of Super-High Strength Steel 23Co-Ni

更新时间：2026-01-21

- Effect of Forging and Conditioning Heat Treatment on Grain Size of Super-High Strength Steel 23Co-Ni
- Special Steel Vol. 36, Issue 6, Pages: 39-41(2015)
- 作者机构：
  
  东北大学材料与冶金学院,沈阳,110819
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：02 June 2015，
  
  Online First：15 August 2022，
  
  Published：15 August 2015
- 稿件说明：
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王瑞, 龚伟, 姜周华, et al. Effect of Forging and Conditioning Heat Treatment on Grain Size of Super-High Strength Steel 23Co-Ni[J]. Special Steel, 2015, 36(6): 39-41.
DOI：

王瑞, 龚伟, 姜周华, et al. Effect of Forging and Conditioning Heat Treatment on Grain Size of Super-High Strength Steel 23Co-Ni[J]. Special Steel, 2015, 36(6): 39-41. DOI：

摘要

实验钢（/%:0.24C

0.01Mn

0.06Si

0.001S

0.002P

13.42Co

11.32Ni

3.05Cr

1.18Mo

0.015Al

0.015Ti）为6 t真空感应炉+真空自耗熔炼的Φ600 mm锭经3次镦拔锻制的Φ300 mm钢棒

并经650℃ 20 h退火处理（晶粒度6.0级）。实验研究了Φ300 mm钢棒至Φ250 mm钢棒（变形30%）的锻制温度（900~1 200℃）和预备热处理（860℃和900℃正火）对钢的晶粒度的影响。结果表明

锻造温度1 000~1 140℃

变形量30%时可获得细小的完全再结晶晶粒（7.0级）。900℃正火处理该钢可获得均匀细小的晶粒（7.0级）。

Abstract

The test steel (/% ： 0.24C

0. 01 Mn

0. 06Si

0. 001S

0.002P

13.42Co

11.32Ni

3.05Cr

1. 18Mo

0. 015Al

0. 015Ti) Φ300 mm bar is forged with 3 times upsetting and forging-out from Φ600 mm ingot melted by 6t vacuum induction furnace + vacuum arc remelting process and annealed at 650 ℃ for 20 h (grains rating 6. 0). The effect of temperature (900 ~ 1 200 ℃ ) forging the Φ300 mm bar to Φ250 mm bar (deformation 30% ) and conditioning heat treatment (normalizing at 860 °C and 900 °C) on grain size of steel has been tested and studied. Results show that with forging at 1 000 ~ 1 140 °C and deforming 30%

the steel has fine and complete recrystallization grains (rating 7. 0). With normalizing at 900 °C the steel has homogeneous and fine grains (rating 7. 0).

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