Effect of Quenching and Tempering Treatment on Structure and Mechanical Properties of 22MnCrNiMo Steel Flash Weld Zone

李仲昱; 王晓国; 戴益波; 张艳; 郭宇航

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Effect of Quenching and Tempering Treatment on Structure and Mechanical Properties of 22MnCrNiMo Steel Flash Weld Zone

更新时间：2026-01-21

- Effect of Quenching and Tempering Treatment on Structure and Mechanical Properties of 22MnCrNiMo Steel Flash Weld Zone
- Special Steel Vol. 42, Issue 3, Pages: 71-75(2021)
- 作者机构：
  
  江苏科技大学材料科学与工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：28 November 2020，
  
  Online First：15 March 2022，
  
  Published：15 March 2021
- 稿件说明：
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李仲昱, 王晓国, 戴益波, et al. Effect of Quenching and Tempering Treatment on Structure and Mechanical Properties of 22MnCrNiMo Steel Flash Weld Zone[J]. Special Steel, 2021, 42(3): 71-75.
DOI：

李仲昱, 王晓国, 戴益波, et al. Effect of Quenching and Tempering Treatment on Structure and Mechanical Properties of 22MnCrNiMo Steel Flash Weld Zone[J]. Special Steel, 2021, 42(3): 71-75. DOI：

摘要

为研究调质处理对R4s （22MnCrNiMo）级系泊链钢闪光焊焊缝区力学性能的影响

通过改变循环淬火温度（880~960 ℃）

确定最优淬火温度;然后通过改变回火温度（560~640℃）和回火后保温时间（2040 min）

研究回火温度和回火后保温时间对钢力学性能的影响。结果表明

经调质处理后

焊缝区断口虽仍呈现韧性断裂

但拥有较高的强度和较好的塑性

特别是在920 ℃ 30 min+920 ℃ 30 min淬火+600℃30 min处理后

焊缝区拥有较高的强度和最佳的塑性

强度达到1 071 MPa

延伸率高达17%

综合性能最优。

Abstract

In order to study the effect of quenching and tempering treatment on the mechanical property of R4s (22MnCrNiMo) mooring chain steel flash weld zone

the double quenching is carried out at 880 ~ 960℃. to define optimum quenching temperature by changing the tempering temperature (560 ~ 640 °C)

and the holding time 20 ~ 40 min

the effect of tempering temperature and holding time on the mechanical property of steel is studied. The results show that with quenching and tempering treatment

all the fracture surfaces in the weld area are ductile fracture with high strength and good plasticity. Especially after 920 °C 30 min + 920°C 30 min quenching + 600 °C 30 min tempering treatment

the weld zone of steel has higher strength and best plasticity

the strength of steel is 1 071 MPa

the elongation is 17%

and the comprehensive performance reaches the optimal.

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