Research on the Welding Process of Martensitic Heat-Resistant Steel F91 and Chromium-Molybdenum Steel F22

JIANG Yuchen; LI En; LIU Xiaohong; JIANG Guoyan; HE Bing

doi:10.7512/j.issn.1001-2303.2026.01.06

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Research on the Welding Process of Martensitic Heat-Resistant Steel F91 and Chromium-Molybdenum Steel F22
Vol. 56, Issue 1, Pages: 45-50(2026)
Received：07 April 2025，

Revised：2025-05-16，

Published：20 January 2026
DOI： 10.7512/j.issn.1001-2303.2026.01.06
稿件说明：

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蒋宇晨，李恩，刘晓鸿，等.F91与F22材料的对接接头焊接工艺性研究［J］.电焊机，2026，56（1）：45-50. DOI： 10.7512/j.issn.1001-2303.2026.01.06.

JIANG Yuchen, LI En, LIU Xiaohong, et al.Research on the Welding Process of Martensitic Heat-Resistant Steel F91 and Chromium-Molybdenum Steel F22[J].Electric Welding Machine, 2026, 56(1): 45-50. DOI： 10.7512/j.issn.1001-2303.2026.01.06.

摘要

以马氏体耐热钢SA-182 Gr.F91与铬钼钢SA-336M Gr.F22 Cl.1异种钢对接接头为研究对象，系统开展了焊接材料匹配性研究、坡口结构优化及焊接工艺参数开发。针对异种钢材料焊接接头消应力热处理温度选择的差异与组织兼容性难题，创新性采用E5515-B2-V焊材作为母材坡口侧隔离过渡层（厚度为10 mm），并选用ER90S-B3焊丝与E9018-B3焊条进行填充和盖面。通过工艺试验确定了焊接参数、层间温度及消应力热处理参数等关键工艺参数。对焊接接头进行短时及长时力学性能测试，各项指标均高于ASME规范要求，有效解决了F22/F91接头消应力热处理参数选择的难题。该异种钢焊接工艺方案已成功应用于第四代先进核电堆型蒸汽发生器设备接管与三回路管道的工程制造，为同类异种材料焊接提供了借鉴和参考。

Abstract

This paper takes the dissimilar steel butt joint of martensitic heat-resistant steel SA-182 Gr.F91 and chromium-molybdenum steel SA-336M Gr.F22 Cl.1 as the research object

and systematically conducts research on the compatibility of welding materials

optimization of groove structure and development of welding process parameters. In response to the differences in stress relief heat treatment temperature selection and microstructure compatibility of dissimilar steel material welded joints

the E5515-B2-V welding material is innovatively used as the isolation transition layer on the groove side of the base metal (with a thickness of 10mm)

and ER90S-B3 welding wire and E9018-B3 welding electrode are selected as the weld filler and cover layer. Through process tests

key process parameters including welding parameters

interlayer temperature and stress relief heat treatment parameters are developed. Short-term and long-term mechanical property tests are conducted on the joint

and all indicators are higher than the requirements of the ASME code

effectively solving the problem of stress relief heat treatment parameter selection for F22/F91 joints. The dissimilar steel welding process scheme formed by the research has been successfully applied to the engineering manufacturing of steam generator equipment nozzles and three-loop pipelines of the fourth-generation advanced nuclear power plant type

providing reference and guidance for the welding of similar dissimilar materials.

关键词

Keywords

references

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