Effect of Tempering Temperature on Microstructure and Hardness of 18Cr2Ni4WA Carburized Steel

刘向艳; 崔鸿; 李刚; 董树权; 杨建华; 穆立峰; 刘桂江

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Effect of Tempering Temperature on Microstructure and Hardness of 18Cr2Ni4WA Carburized Steel

更新时间：2026-01-21

- Effect of Tempering Temperature on Microstructure and Hardness of 18Cr2Ni4WA Carburized Steel
- Special Steel Vol. 40, Issue 5, Pages: 57-59(2019)
- 作者机构：
  
  1. 抚顺特殊钢股份有限公司 1销售公司
  2. 物流公司
  3. 连轧厂
  4. 总工办,抚顺,113001
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：11 April 2019，
  
  Online First：13 May 2022，
  
  Published：13 May 2019
- 稿件说明：
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刘向艳, 崔鸿, 李刚, et al. Effect of Tempering Temperature on Microstructure and Hardness of 18Cr2Ni4WA Carburized Steel[J]. Special Steel, 2019, 40(5): 57-59.
DOI：

刘向艳, 崔鸿, 李刚, et al. Effect of Tempering Temperature on Microstructure and Hardness of 18Cr2Ni4WA Carburized Steel[J]. Special Steel, 2019, 40(5): 57-59. DOI：

摘要

为满足用户加工HBW硬度值≤269的需要

降低18Cr2Ni4WA钢Φ60 mm材硬度

利用连轧厂实际辊底式退火炉进行了630～750℃5h炉冷至500℃空冷的回火试验

并借助金相显微镜对18Cr2Ni4WA钢不同回火温度下的组织进行了分析

以确定最佳的回火温度。结果表明

18Cr2Ni4WA钢随回火温度的升高硬度先下降后上升

当温度为670℃时

钢材平均HBW硬度值最低(HBW238左右)

回火组织为均匀的回火珠光体组织。

Abstract

In order to meet the user requirement to derease the hardness of 18Cr2Vi4WA steel Φ 60 mm product i. e. HBW hardness value ≤269

the tempering test at 630 〜750 °C for 5 h

furnace cooling to 500 °C

air cooling have been tested by bottom roller annealing furnace and by the help of metalloscope to analyze annealing shape of 18Cr2Ni4WA steel with different temperature. The result show that 18Cr2Ni4WA tempering hardness is connected with temperature

with the increase of annealing temperature

the hardness dacreases first and then increases. When tempering temperature is 670°C ，the HBW average hardness of steel products is the lowest( adout HBW238 ) and the structure is uniform spheroidized pearlite.

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