نتایج جستجو برای: فولاد hsla x70

تعداد نتایج: 4841  

2012
D. AGUIRRE-GUERRERO A. JUÁREZ-HERNÁNDEZ M. A. L. HERNÁNDEZ-RODRÍGUEZ R. MORALES I. RUIZ

D. Aguirre-Guerrero, A. Juárez-Hernández, M.A.L. Hernández-Rodríguez, University Autonumous of Nuevo León, Faculty of Mechanical and Electrical Engineering, Nuevo León, México. R. Morales, I. Ruiz, PEMSA Co. Celaya, Guanajuato, México. The eff ect of initial plastic strain c ycle fatigue lives of HSLA specimens is in vestigated. Specimens were monotonically, quasi-statically loaded under strain...

2014
S. BULATOVIĆ

S. Bulatović, Yugoslav River Shipping, Serbia, Z. Burzić, Military Technical Institute, Serbia, V. Aleksić, Institute for Testing Materials, Serbia, A. Sedmak, University of Belgrade, Faculty of Mechanical Engineering, Serbia, Lj. Milović, University of Belgrade, Faculty of Technology and Metallurgy, Serbia High strength low-alloy steel under low cycle fatigue at a certain level of strain contr...

Journal: :Acta Metallurgica Slovaca 2022

This paper deals with the solid state diffusion bonding of X70 steel to duplex stainless steel. Microstructure and mechanical properties welded dissimilar steels were investigated. Optical microscopy, Electron Backscatter Diffraction, energy dispersive spectrometry, Vickers hardness measurements, X-Ray Diffraction main techniques characterization. Microtructural variation was observed in side c...

Journal: :Metallurgist 2021

Mechanical properties as well crack resistance and stress corrosion cracking (SCC) parameters of ultralow-carbon martensite steels (ULMS) type 05H2G2B HSLA pipe steel 10G2FB with a different structures depending on processing are investigated. It is shown that despite higher strength level, SCC ULMS 25–30% than for ferrite-perlite structure close to this subjected quenching tempering.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده مهندسی 1393

در این پژوهش هدف بررسی اتصال غیر مشابه دو فولاد کم آلیاژ استحکام بالا api x70 و api x80 حاصل از روش های جوشکاری متفاوت و ارزیابی ریز ساختاری و رفتار خوردگی مناطق مختلف جوش حاصل بوده است. بدین منظور جهت ایجاد اتصال از سه فرآیند smaw ، gtaw و gmaw استفاده گردید.فیلرهای مورد استفاده در سه فرآیند به ترتیب شامل 8018g ، e80s ، er80s می باشد. بررسی ریز ساختاری با استفاده از میکروسکوپ نوری و الکترو...

2008

Like all steel types, HSLA requires a definition and strict practical adherence to welding parameters in order to achieve the required weld quality. Different sources offer a varying array of welding parameters. Although their hierarchical importance can be disputed, their principal definition and practical adherence are prerequisites for the quality of welded joints 1,2 . The analysis of earli...

Journal: :international journal of iron & steel society of iran 2006
hardy mohrbacher

modern vehicle bodies make intensive use of high strength steel grades to meet the contradicting demand of lighter weight and simultaneously better mechanical performance. for many steel grades microalloying by niobium is the key to achieve their characteristic property profile. in hsla steels niobium enhances the strength primarily by grain refinement. in interstitial free high strength steels...

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