Experience of P93 manifold welding under fabrication conditions

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials at High Temperatures Pub Date : 2023-02-07 DOI:10.1080/09603409.2023.2175293

Patric de Smet, Koon-ging Tang, Michael Bok

引用次数: 0

Abstract

ABSTRACT A test manifold of grade P93 is welded under shop fabrication conditions. Raw materials include pipe and forgings. Welding processes used are GTAW and SMAW. Weld joints involve heavy wall butt welds and branch joints. Welded joints are subjected to different heat treatment cycles to assess the effect on the materials’ properties. Welding experiences and mechanical test results in relation to PWHT and ageing are discussed. Tensile test results comply with the requirements. Achieving impact toughness requirements appears to be challenging, however improvements are expected through further optimisation of heat treatment and welding procedures.

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有在制造条件下焊接P93歧管的经验

在车间制造条件下焊接了P93级试验管汇。原材料包括管道和锻件。焊接工艺采用GTAW和SMAW。焊接接头包括厚壁对焊和分支接头。焊接接头进行不同的热处理循环，以评估对材料性能的影响。讨论了与PWHT和时效有关的焊接经验和力学试验结果。拉伸试验结果符合要求。达到冲击韧性要求似乎是具有挑战性的，然而，通过进一步优化热处理和焊接工艺，有望得到改善。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials at High Temperatures 工程技术-材料科学：综合

CiteScore

1.90

自引率

15.40%

发文量

审稿时长

>12 weeks

期刊介绍： Materials at High Temperatures welcomes contributions relating to high temperature applications in the energy generation, aerospace, chemical and process industries. The effects of high temperatures and extreme environments on the corrosion and oxidation, fatigue, creep, strength and wear of metallic alloys, ceramics, intermetallics, and refractory and composite materials relative to these industries are covered. Papers on the modelling of behaviour and life prediction are also welcome, provided these are validated by experimental data and explicitly linked to actual or potential applications. Contributions addressing the needs of designers and engineers (e.g. standards and codes of practice) relative to the areas of interest of this journal also fall within the scope. The term ''high temperatures'' refers to the subsequent temperatures of application and not, for example, to those of processing itself. Materials at High Temperatures publishes regular thematic issues on topics of current interest. Proposals for issues are welcomed; please contact one of the Editors with details.