STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS
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STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS
Thermal Power GenerationVol. 39, Issue 5, Pages: 62-65(2010)
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:
STUDY ON MICROSTRUCTURE AND PERFORMANCE OF WELDED JOINT BETWEEN DIFFERENT STEELS
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.