A review of LTT welding alloys for structural steels: Design, application and results

Igwemezie, Victor; Shamir, Muhammad; Mehmanparast, Ali; Ganguly, Saibal

doi:10.1016/j.jajp.2022.100110

Cited by 6 publications

(2 citation statements)

References 67 publications

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“…Low transformation temperature (LTT) martensitic steel material was used in these experiments [24]. Sample sheets were made by build-up welding with LTT steel wire and subsequent machining to achieve plates with 100 mm length, 5 mm thickness, and 13 mm height.…”

Section: Experiments Sectionmentioning

confidence: 99%

Temperature distribution during welding measured by neutron imaging

Jamro,

Mente,

Kardjilov

et al. 2023

J. Phys.: Conf. Ser.

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This study was carried out to investigate the neutron transmission signal as a function of sample temperature during a welding process. A theoretical description that includes the Debye-Waller factor was used to describe the temperature influence on the neutron cross-sections. Neutron imaging using a monochromatic beam helps to observe transmission variations related to the material temperature. In-situ neutron imaging of welding experiments show the distribution of the temperature in bulk steel samples. The performed finite element modelling of expected temperature distributions shows good agreement with the obtained experimental data.

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Section: Experiments Sectionmentioning

confidence: 99%

Temperature distribution during welding measured by neutron imaging

Jamro,

Mente,

Kardjilov

et al. 2023

J. Phys.: Conf. Ser.

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“…There are several methods which are used in industry shown in Figure 1, where the most available ones are marked with green colour. In the most bottom block of Figure 1 "LTT welding" means Low Transformation Temperature welding whose details can be found in the literature (Harati et al, 2017;Igwemezie et al, 2022). An overview regarding usage and to some extent, fatigue assessment and the increase of fatigue strength, are given in the IIW guidelines for improvement techniques (Hobbacher et al, 2009;Haagensen et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

The Analysis of Case Studies Helps to Preparation and Evaluation of High Strength Steel Fatigue Strength Improving Programs for Post-Weld Treatment Methods

Sas¹,

Lukács²

2022

MDT

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Numerous researchers conducted work on the fatigue strength improvement of high strength steels welding joint by applying different post-weld treatment on it, in the last decade. These research works based on different approaches to compare the post-weld treated welding joints fatigue strength with the as welded condition or with another post-weld treatment processes. These methods are limitedly applied based on practical experiences, however significantly different results were presented in research studies. To compare the different post-weld treatment fatigue strength improvement results on high strength steels, experimental program should be performed. The aims of this article are summarizing the most relevant information for our experimental work based on analysed case studies, and proposing program setup method for evaluation different post-weld treatment process results.

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