强烈的动态作用对含氮奥氏体焊接金属结构和性能的影响

IF 0.8 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metallurgist Pub Date : 2024-07-23 DOI:10.1007/s11015-024-01733-2

Al. S. Smolentsev, V. E. Veselova

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引用次数: 0

摘要

研究了金属物体（压头）的局部高速强烈动态作用对用奥氏体药芯焊丝与氮气焊接的高强度合金钢焊缝金属结构变化的影响。结果表明，焊接后的焊缝金属结构由奥氏体和δ-铁素体（3 vol. %）组成，显微硬度为 HV0.1 200-250。在强烈的动态作用下，焊缝金属由于加工硬化和结构内变形形成的α'-马氏体（10 vol.%）和少量ε-马氏体（ε-马氏体）而通过γ → ε → α'机制得到强化，同时保持了原始的δ-铁素体含量，显微硬度比初始水平提高了 1.7 倍以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Influence of intense dynamic action on the structure and properties of austenitic weld metal with nitrogen

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Influence of intense dynamic action on the structure and properties of austenitic weld metal with nitrogen

The effect of local high-speed intense dynamic action by a metal object (indenter) on the change in the structure of weld metal of high strength alloy steel welded with austenitic flux-cored wire with nitrogen is studied. It is established that after welding the weld metal structure consists of austenite and delta-ferrite (3 vol. %) with microhardness HV_0.1 200–250. After intense dynamic action weld metal is strengthened by a γ → ε → α’ mechanism due to work hardening and formation of deformation within the structure of α’-martensite in an amount of 10 vol.% and a small amount of ε‑martensite while maintaining the original amount of δ‑ferrite, and with an increase in microhardness by more than 1.7 times from the initial level.

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来源期刊

Metallurgist 工程技术-冶金工程

CiteScore

1.50

自引率

44.40%

发文量

151

审稿时长

4-8 weeks

期刊介绍： Metallurgist is the leading Russian journal in metallurgy. Publication started in 1956. Basic topics covered include: State of the art and development of enterprises in ferrous and nonferrous metallurgy and mining; Metallurgy of ferrous, nonferrous, rare, and precious metals; Metallurgical equipment; Automation and control; Protection of labor; Protection of the environment; Resources and energy saving; Quality and certification; History of metallurgy; Inventions (patents).