通过原位感应后加热提高异种钢 A-TIG 焊点的机械性能

IF 1.9 Q3 ENGINEERING, MANUFACTURING

Manufacturing Letters Pub Date : 2024-10-09 DOI:10.1016/j.mfglet.2024.09.201

Pratishtha Sharma , Dheerendra Kumar Dwivedi

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引用次数: 0

摘要

本文提出了一种通过 "感应后加热 A-TIG 焊接（A-TIG(I) 焊接）"提高异种马氏体钢-奥氏体不锈钢接头机械性能（延展性和冲击韧性）的方法。A-TIG(I) 焊接通过降低冷却速度（从 9.83°C/s 降至 0.8°C/s），减少了马氏体的形成，促进了焊接区（WZ）内铁素体的形成。微观结构的转变提高了延展性（44.9%），而强度（665.75 兆帕）没有明显下降。此外，还获得了与 WZ 不相匹配的冲击韧性（103 ± 2）J。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Enhancing mechanical properties of dissimilar steel A-TIG weld joint by in-situ induction post-heating

An approach is proposed to enhance the mechanical properties (ductility and impact toughness) of dissimilar martensitic steel-austenitic stainless steel joint by ‘A-TIG welding with induction post-heating (A-TIG_(I) welding)’. The A-TIG_(I) welding mitigates the martensite formation and promotes the ferrite formation within the weld zone (WZ) by retarding the cooling rate (from 9.83 °C/s to 0.8 °C/s). Microstructural transformations enabled in achieving the improved ductility (44.9 %) without significant loss of strength (665.75 MPa). Overmatched impact toughness (103 ± 2) J of WZ was also obtained.

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来源期刊

Manufacturing Letters Engineering-Industrial and Manufacturing Engineering

CiteScore

4.20

自引率

5.10%

发文量

192

审稿时长

60 days