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
收藏
页码：385 / 390
页数：6
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