Effect the Thermal Cycle of Welding and Thermal Cycling Treatment on the Properties and Fracture of 08Kh18G8N2T Steel

被引：0

作者：

Bondareva, O. P. ^{[1
]}

Sedov, E. V. ^{[1
]}

Kryuchkov, O. B. ^{[1
]}

机构：

[1] Volgograd State Tech Univ, Volgograd 400005, Russia

来源：

RUSSIAN METALLURGY | 2022年 / 2022卷 / 04期

关键词：

thermal welding cycle; thermal cycling treatment; near-weld zone; impact toughness; HEAT-AFFECTED ZONE;

D O I：

10.1134/S0036029522040073

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The impact toughness and phase-structural transformations in 08Kh18G8N2T steel are studied after a thermal action, which simulates the heating of the near-weld zone during electroslag welding, and subsequent thermal cycling treatment under various conditions. An increase in the impact toughness from 0.25 to 1.2 MJ/m(2) is detected after thermal cycling in the temperature range 700-900 degrees C at a rate of 1 degrees C/s, which is associated with the redistribution of alloying elements between phases, structure fragmentation, and the morphology of excess phases.

引用

页码：385 / 390

页数：6

共 50 条

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