Effect of Submerged Arc Welding on High Temperature Tensile Properties of P91 Type Steel

There have been research efforts to increase the efficiency of power plants by improving creep-resistant steels having stable mechanical properties at elevated temperatures. The components operating at temperatures between 575°C and 650°C are usually made of P91 (9Cr-1Mo) steel. The application of welding techniques creates a risk of reduction in high-temperature strength and creep resistance, particularly in the heat-affected zone of the weldments. In this study, the effect of the shielded metal arc welding (SMAW) on the high temperature tensile properties of P91 type steel plates was investigated.
20. International Metallurgy and Materials Congress


Effect of bypassing the heat transfer fluid on charging in a latent thermal energy storage unit
Baghaei Oskouei, Seyedmohsen; Bayer, Özgür (2023-06-01)
Horizontal latent thermal energy storage (LTES) systems that use phase change materials (PCMs) are popular and effective methods of alleviating the intermittency of renewable energy sources. The main issue of PCMs is their low thermal conductivity, resulting in long charging times and slow response. In this investigation, a novel method to overcome this issue is proposed by designing bypassing tubes that redirect the flow of heat transfer fluid to the bottom of the horizontal LTES tank, where the melting ra...
Effect of Synthetic Fibers on Energy Absorption Capacity of Normal and High Performance Concrete
Şengün, Emin; Alam, Burhan; Yaman, İsmail Özgür (null; 2016-06-08)
With the increasing aim of incorporating concrete in different applications and infrastructure elements, the use of macro synthetic fiber incorporated concretes has become real popular thanks to their high energy absorption capacity, toughness and impact resistance. The aim of this study is to investigate the effects of synthetic fibers on toughness and energy absorption of normal and high performance concretes. For this experimental study, eight concrete groups were designed using synthetic fibers of vario...
Effect of changing biomass source on radiative heat transfer during co-firing of high-sulfur content lignite in fluidized bed combustors
Ates, CİHAN; Selçuk, Nevin; Külah, Görkem (2018-01-05)
In this study, effect of changing biomass source on radiative heat transfer during co-firing of high-sulfur content lignite in the freeboard of 300 kW(t) Atmospheric Bubbling Fluidized Bed Combustor (ABFBC) is investigated by using an in-house developed radiation code based on Method of Lines (MOL) solution of Discrete Ordinates Method (DOM). The freeboard is treated as a 3D rectangular enclosure containing gray, absorbing, emitting gas with absorbing, emitting, anisotropically scattering particles surround...
Effect of porosity on the efficiency of DSSC produced by using nano size TiO2 powders
Bilgin, Nursev; Park, Jongee; Öztürk, Abdullah (2014-01-01)
Gözenekliliğin, 20 nm ve 200 nm TiO2 partiküllerinin farklı oranlarda karıştırılmasıyla oluşturulan pastalar kullanılarak hazırlanan boyaya duyarlı güneş pillerinin (DSSC'ler) enerji dönüşüm verimine etkisi araştırılmıştır. Macunların mikroyapısını incelemek için XRD ve SEM analizleri yapılmıştır. DSSC'lerin enerji dönüşüm verimliliği, tam akım yoğunluğu-voltaj eğrisi çizilerek belirlendi. Ağırlıkça% 40 20 nm ve ağırlıkça% 60 200 nm TiO2 partiküllerinden oluşan karışım kullanılarak hazırlanan DSSC,% 6.74'lü...
Effects of Wind Turbines on Voltage Profile
Abedinzadeh, Taher; Ehsan, Mehdi; Afsharirad, Hadi; Nazaraliloo, Mohammad (2011-09-10)
For distribution grids connected wind power generation, voltage quality is an important issue for the system planning purpose. The operation of wind turbines in the distribution networks may affect the voltage quality offered to the consumers. One of the most important considerations is the effect on the voltage profile, i.e. the induced slow voltage variations, which are the subject of this paper.
Citation Formats
J. Aslam, C. Batıgün, and C. H. Gür, “Effect of Submerged Arc Welding on High Temperature Tensile Properties of P91 Type Steel,” İstanbul, Türkiye, 2021, vol. 1, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/101054.