焊接和非焊接条件下铬镍铁合金力学性能和显微组织行为的初步研究

IF 1.1 Q3 METALLURGY & METALLURGICAL ENGINEERING
Saurabh Dewangan, Sharath Narayanan, Gurbaaz Singh Gill, Utkarsh Chadha
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引用次数: 1

摘要

这项工作的重点是分析Inconel-718板材在焊接和非焊接条件下的力学性能和微观评估。焊接采用钨极惰性气体焊接技术。对两种类型的板材进行了拉伸试验和硬度试验,以比较焊接接头和未焊接板材的性能。尽管铬镍铁合金718具有良好的可焊性,但据报道,焊接接头的强度、延展性和硬度低于未焊板。显微结构图像显示,铬镍铁合金板中存在的金属碳化物在焊接后减少。焊接接头断裂前的极限拉伸应力和伸长率分别比未焊板低16%和72%。断裂部位的断口分析表明,未焊板比焊接板具有更高的延性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PRELIMINARY INVESTIGATION INTO MECHANICAL PROPERTIES AND MICROSTRUCTURAL BEHAVIOUR OF INCONEL ALLOY UNDER WELDED AND UNWELDED CONDITIONS
This work focusses on analysing mechanical properties and microscopic assessment into Inconel-718 plates in welded and unwelded conditions. Welding was performed by tungsten inert gas welding technique. Two mechanical tests such as tensile test and hardness were performed on both the types of plates to compare the properties of welded joint and unwelded plate. Although Inconel 718 possesses good weldability, the strength, ductility, and hardness of welded joint were reported lesser than these of Unwelded plate. The microstructural images revealed that metal carbides present in Inconel plate had reduced after welding. The ultimate tensile stress and elongation before breaking of welded joint were 16% and 72% lower than Unwelded plate. The fractography analysis of the ruptured part revealed that Unwelded plate possessed higher ductility than welded plate.
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来源期刊
Acta Metallurgica Slovaca
Acta Metallurgica Slovaca METALLURGY & METALLURGICAL ENGINEERING-
CiteScore
2.00
自引率
30.00%
发文量
22
审稿时长
12 weeks
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