Effect of Solution and Aging Heat Treatment on the Microstructure and Mechanical Properties of Inconel 625 Deposited Metal

被引：1

作者：

Wang, Yingdi ^{[1
]}

Su, Yunhai ^{[1
]}

Dai, Zhiyong ^{[1
]}

机构：

[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China

来源：

CRYSTALS | 2024年 / 14卷 / 09期

关键词：

Inconel; 625; heat treatment; microstructure; strengthening mechanism; TENSILE PROPERTIES; ALLOY; EVOLUTION; PRECIPITATION; TEMPERATURE; BEHAVIOR; CREEP; WELD;

D O I：

10.3390/cryst14090764

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Inconel 625 deposited metal was prepared by gas metal arc welding. The solid solution treatment temperature was set at 1140 degrees C for 4 h using the DSC test method, followed by secondary aging at 750 degrees C/4 h and 650 degrees C/24 h. The specimens in the prepared state and after heat treatment were subjected to high temperature tensile at 600 degrees C, respectively. The fracture morphology, thermal deformation behavior, and strengthening mechanism of the samples in different states were analyzed. The results showed that the stress-strain curves of the deposited metals exhibited obvious work-hardening behavior at 600 degrees C. The solid solution and aging heat-treated samples have higher tensile and yield strength, but the plasticity is obviously lower than that of the deposited metal. It was also found that the gamma '' phase and M23C6 carbides, as well as the continuous stacking faults in the alloy, were the main reasons for the increase in tensile strength of the solution and aging heat-treated sample.

引用

页数：14

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