Effect of Heat Treatment Modes Under Phase Pre-Transformation Conditions on the Structure and Properties of Electron-Beam-Welded Joints of Titanium Alloy

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2024-04-16 DOI:10.1007/s11041-024-01004-6

V. V. Grigorev, P. V. Bakhmatov

引用次数: 0

Abstract

The effect of heat treatment modes under conditions of phase pre-transformation on the structure and properties of electron-beam-welded joints of titanium alloy VT20 is investigated. It is shown that heat treatment at 980°C for 120 – 150 sec makes it possible to remove residual stresses and to increase the tensile strength of the welded joints to 1230 MPa, as well as to ensure a uniform chemical composition over the volume of the joints to meet the requirements of OST 1 90013–81. The suggested method of heat treatment may be used for local treatment of the heat affected zone and of the welded joint in air environment.

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相预转变条件下的热处理模式对钛合金电子束焊接接头结构和性能的影响

研究了相预转变条件下的热处理模式对钛合金 VT20 电子束焊接接头的结构和性能的影响。结果表明，在 980°C 的温度下进行 120 - 150 秒的热处理可以消除残余应力，将焊接接头的抗拉强度提高到 1230 兆帕，并确保接头体积内的化学成分均匀一致，以满足 OST 1 90013-81 的要求。建议的热处理方法可用于热影响区和焊接接头在空气环境中的局部处理。

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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来源期刊

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

期刊介绍： Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.