Inconel 625合金焊丝微观组织EBSD研究

苗承鹏; 马继国; 董生茂; 梁仲兵; 孙全珍; 王晓军

doi:10.7512/j.issn.1001-2303.2025.01.06

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Inconel 625合金焊丝微观组织EBSD研究
EBSD Analysis of Microstructure of Inconel625 Alloy Wire
2025年55卷第1期页码：43-50
收稿：2024-03-15，

修回：2024-09-09，

纸质出版：2025-01-20
DOI： 10.7512/j.issn.1001-2303.2025.01.06
稿件说明：

移动端阅览

苗承鹏，马继国，董生茂，等.Inconel 625合金焊丝微观组织EBSD研究［J］.电焊机，2025，55（1）：43-50. DOI： 10.7512/j.issn.1001-2303.2025.01.06.

MIAO Chengpeng, MA Jiguo, DONG Shengmao, et al.EBSD Analysis of Microstructure of Inconel 625 Alloy Wire[J].Electric Welding Machine, 2025, 55(1): 43-50. DOI： 10.7512/j.issn.1001-2303.2025.01.06.

摘要

采用EBSD技术对自主研发A焊丝与国内B焊丝、国外C焊丝的成分、择优取向、晶粒尺寸、表面质量以及焊丝内部夹杂物含量进行对比评价焊丝质量。结果表明，通过优化焊丝成分与工艺，A、B、C三种焊丝横纵截面均存在

111

丝织构和

100

丝织构，织构密度呈现出A

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2.28600001

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1.60866666

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C。A焊丝纵截面再结晶晶粒与回复晶粒数之和占总晶粒数的33.45%，B焊丝纵截面再结晶晶粒数+回复晶粒数为9.45%，而C焊丝横截面再结晶晶粒数加回复晶粒数为12.21%，呈现出A

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2.28600001

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1.60866666

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2.28600001

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1.60866666

B。晶粒尺寸评级为A焊丝G12.0、B焊丝G12.5、C焊丝G13.0，呈现出C

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2.28600001

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A。A焊丝三维粗糙度为4.30 μm，B焊丝三维粗糙度为4.76 μm，C焊丝三维粗糙度为5.29 μm，表面质量呈现A优于B优于C；A焊丝夹杂物评级为D0.5的视场数为2，B、C焊丝夹杂物评级为D1的视场数均为7，并且存在D1e类粗细夹杂的视场数为1。综合评估A焊丝品质优于B、C焊丝。

Abstract

In this paper

the preferred orientation

grain size

surface quality and inclusions content of the A wire were compared with the domestic B wire and foreign C wire by EBSD technique. The results show that，by optimizing the composition and process of welding wire

the section of A

B and C wires have <111> and <100> wire texture

and the texture density sorting as A＜B＜C. The sum of recrystallized grains and the number of recovery grains in the longitudinal section of A wires accounted for 33.45% of the total number of grains

and the number of recrystallized grains in the longitudinal section of B wires plus the number of recovery grains was 9.45%

whereas the number of recrystallized grains and the number of recovery grains in the cross section of C wires was 12.21%

sorting as A＞C＞B. The grain size grade of A

C wire is G12.0

G12.5

G13.0 respectively

sorting as C＞B＞A. The 3D roughness of A

C wire is 4.30 μm

4.76 μm

5.29 μm respectively

and the surface quality of A is the best and B is better than C. A wire with an inclusion rating of D0.5 has a field of view of 2. B

C wire with an inclusions rating of D1 has a field of view of 7

and there is a D1e class of coarse and fine inclusions in one field of view. Comprehensive assessment of the quality of the A wire is better than that of the B

C wire.

关键词

Keywords

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