Influence of welding stresses on relief cracking during heat treatment of a creep-resistant 13CrMoV steel Part III: assessment of residual stresses from small-scale to real component welds

Author:

Schroepfer D.ORCID,Kromm A.,Lausch T.,Rhode M.,Wimpory R. C.,Kannengiesser T.

Abstract

AbstractFor higher operational temperatures and pressures required in petrochemical plants, the modified 13CrMoV9-10 steel was developed providing high resistance against creep and compressed hydrogen. Extreme care during the welding procedure is necessary for this steel, attributed to low toughness, high strength in as-welded state, and increased susceptibility to stress relief cracking (SRC) during post-weld heat treatment (PWHT). Previous research of SRC in creep-resistant steels discussed mainly thermal and metallurgical factors. Few previous findings addressed the influences of welding procedure on crack formation during PWHT considering real-life manufacturing conditions. These investigations focus on effects of welding heat control on stresses during welding and subsequent PWHT operations close to realistic restraint and heat dissipation conditions using a special 3D testing facility, which was presented in parts I and II of this contribution. Part III addresses investigations on residual stress evolution affecting crack formation and discusses the transferability of results from large-scale testing to laboratory-scale. Experiments with test set-ups at different scales under diverse rigidity conditions and an assessment of the residual stresses of the weld-specimens using X-ray (surface near) and neutron diffraction analysis (bulk) were performed. This study aims to provide a way of investigating the SRC behaviour considering component-specific residual stresses via small-scale testing concepts instead of expensive weld mock-ups.

Funder

Bundesanstalt für Materialforschung und -prüfung (BAM)

Publisher

Springer Science and Business Media LLC

Subject

Metals and Alloys,Mechanical Engineering,Mechanics of Materials

Reference29 articles.

1. Antalffy L (2009) Metallurgical, design & fabrication aspects of modern hydroprocessing reactors. Weld Res Counc Bull 524:77–115

2. Park K, Kim S, Chang J, Lee C (2012) Post-weld heat treatment cracking susceptibility of T23 weld metals for fossil fuel applications. Mater Des 34:699–706. https://doi.org/10.1016/j.matdes.2011.05.029

3. Nevasmaa P, Salonen J (2013) Reheat cracking susceptibility and toughness of 2% CrMoWVNb P23 steel welds. Weld World 52(3-4):68–78. https://doi.org/10.1007/bf03266633

4. Lausch T (2015) Untersuchungen zum Einfluss der Wärmeführung auf die Rissbildung beim Spannungsarmglühen dickwandiger Bauteile aus 13CrMoV9-10. Dissertation, BAM Bundesanstalt für Materialforschung und -prüfung, BAM Dissertationsreihe Band 134. Otto-von-Guericke-Universität Magdeburg, Berlin (in German).

5. Lausch T, Kannengiesser T, Schmitz-Niederau M (2013) Multi-axial load analysis of thick-walled component welds made of 13CrMoV9-10. J Mater Process Technol 213:1234–1240. https://doi.org/10.1016/j.jmatprotec.2013.01.008

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3