Structural Features of Welded Joint of Medium-Carbon Chromium Steel Containing Metastable Austenite

被引：3

作者：

Korobov Y.S. ^{[1
,2
]}

Pimenova O.V. ^{[1
]}

Filippov M.A. ^{[1
]}

Khadyev M.S. ^{[1
]}

Ozerets N.N. ^{[1
]}

Mikhailov S.B. ^{[1
]}

Morozov S.O. ^{[1
]}

Davydov Y.S. ^{[1
]}

Razikov N.M. ^{[1
]}

机构：

[1] Ural Federal University, Yekaterinburg

[2] Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg

来源：

Inorganic Materials: Applied Research | 2020年 / 11卷 / 1期

关键词：

dissipative structure; electron microscopy; flux-cored wire; martensitic transformation under loading; metastable austenite; strain hardening; stress relaxation; TRIP effect; welded joints;

D O I：

10.1134/S2075113320010220

中图分类号：

学科分类号：

摘要：

Abstract: Phase transitions during crystallization and subsequent thermal and deformation effects under the influence of various mechanical loads in welded joints of the plates of medium carbon steel by a consumable electrode in shielding gases with a flux-cored wire based on Fe–C–Cr matrix are studied. The test results for weldability, abrasive wear resistance, and stress state formation and the results of metallographic, electron microscopic, and X-ray diffraction studies are analyzed. It is shown that the structure of welded seam consists of metastable austenite, δ-ferrite, and high-strength carbon–chromium martensite. Welded joints have a high capability of intense hardening under local deformation owing to the TRIP effect (transformation-induced plasticity). © 2020, Pleiades Publishing, Ltd.

引用

页码：132 / 139

页数：7

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