STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS

LI Zhenggang1; LI Yiwen2; ZHOU Jinping3 1.College of Power and Mechanical Engineering

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STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS

Thermal Power Generation Vol. 39, Issue 5, Pages: 62-65(2010)

更新时间：2025-09-28

- STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS
- 作者机构：
  
  1. 武汉大学动力与机械学院材料系
  2. 中广核工程有限公司
  3. 国电长源汉川第一发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG407;TM621
- Published：2010
- 稿件说明：
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LI Zhenggang1, LI Yiwen2, ZHOU Jinping3 1.College of Power and Mechanical Engineering. STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS[J]. Thermal Power Generation, 2010, 39(5): 62-65.
DOI：

LI Zhenggang1, LI Yiwen2, ZHOU Jinping3 1.College of Power and Mechanical Engineering. STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS[J]. Thermal Power Generation, 2010, 39(5): 62-65. DOI：

摘要

对长期运行后的TP347H与钢102异种钢焊接接头进行了组织与性能试验研究

对其组织老化与性能变化进行了分析。结果表明

长期运行后钢102金相组织达到4级球化

TP347H钢有沿晶碳化物析出

钢102侧熔合线处存在一个过渡层

该处析出较多碳化物

硬度较高

母材中的碳向焊缝迁移。

Abstract

A test study on microstructure and performance of welded joint between different steels;i.e.TP347H steel and 102 steel

after long-term service has been carried out

the aging of microstructure and variation of performance being analysed.Results show that the metallographic structure of 102 steel after long-term service has reached 4-grade spheroidization

and the carbide precipitation appears along the grain boundary in TP347H steel;on the fusion line at the 102 steel side

there is a transitional layer

in which precipitation of more carbide appears

and has higher hardness

the carbon existing in base metal removes to the welded joint.

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