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Study of Fatigue Fractography of Mild Steel Used in Automotive Industry
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Fatigue failure is almost considered as the predominant problem affecting automotive parts under dynamic loading condition. Thus, more understanding of crack behavior during fatigue can strongly help in finding the proper mechanism to avoid the final fracture and extent the service life of components. The main goal of this paper is to study the fracture behavior of low carbon steel which is used mostly in automotive industry. For this purpose, the fractography of samples subjected to high and low stress levels in fatigue test then was evaluated and analyzed. Hardness and tensile tests were carried out to determine the properties of used steel. Also, the samples were characterized by microstructure test and XRD analysis to examine the constitute phases. The fatigue test (S-N curve) was done at stress ratio (R= -1), and the fracture examination was perform using Scanning Electron Microscope (SEM). The results of microstructure and XRD analysis were indicating that the Ferrite and a little amount of pearlite are the dominant phases of this steel. Whereas, the fractography observations reveal that the void coalescence ductile fracture is the main failure mode in samples with high stress level, while the ductile fracture (void coalescence) with Transgranular Cleavage fracture was noticed in low stress fatigue mode for this alloy.

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Publication Date
Sun Feb 22 2026
Journal Name
Alustath Journal For Human And Social Sciences
أشعار النقوش األندلسية في كتاب نفح الطيب للمقري - دراسة في موسيقى الشعر
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تمثل هذه النقوش طبيعة العصر فيه ؛ لذلك نجد الباحثين المهتمين بعلم اآلثار ، والتاريخ القديم هم أكثر من بحث عنها ، ثم حاولوا فك رموزها ، وما زال بعضها قيد الدراسة .

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Publication Date
Tue Jul 01 2008
Journal Name
Journal Of Educational And Psychological Researches
جرائم الاحداث بعد الاحتلال دراسة ميدانية (في دار الملاحظة في حي السلام)
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قال احد المربين ( أعطوني طفولة سعيدة ممتلئة وخذوا شباباً ناضجاً سليماً) ويعني بالطفولة السعيدة تلك الطفولة المشبعة بالحب والحنان وتلبية الحاجات المهمة للطفل حيث يتعلم الطفل من احضان العائلة بعض النواهي والاوامر حتى اذا اتسعت دائرة معارفه شملت الرفقة والعصبة حيث يبدأ الطفل بالتحرر شيئاً فشيئأ من الضوابط العائلية وينتقل مركز ولائه واخلاصه من العائلة الى العصبية وكلما تتوسع علاقات الطفل تزداد خبراته وت

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Publication Date
Fri Jun 02 2017
Journal Name
المجلة السياسية والدولية
مكانة القوة في المدرك الاستراتيجي الامريكي : دراسة في التأصيل النظري والتوظيف الاستراتيجي
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يعد الربط بين جدلية ما هو كائن وما يجب أن يكون فيما يتعلق بمكانة القوة في المدرك الاستراتيجي الأمريكي وإشكالية توظيفها، من المتلازمات الذهنية الراسخة في التفكير الاستراتيجي الأمريكي، لاسيما بعد أحداث 11 أيلول 2001 وحربي أفغانستان والعراق، والتي كانت من المحفزات الأساسية للبحث عن توظيف بدائل أو وسائل فاعلة تعزز مخرجات الأداء الاستراتيجي الأمريكي بما يصب في المحصلة النهائية في جانب تكتيل القدرات الاستراتيجية

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Publication Date
Sun Dec 02 2018
Journal Name
Arab Science Heritage Journal
التذكير التذكير و التأنيث في العامية العراقية وعلاقتها بالفصحى دراسة في الموروث
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The phenomenon of Masculine and feminine is one of the important grammatical studies because of their influence on the sentence structure, words come either masculine and feminine type when using one of them in place of the other , this displacement might cause distribution in the sentence itself because,

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Publication Date
Fri Oct 30 2020
Journal Name
Journal Of Economics And Administrative Sciences
Accounting measurement of intangible assets (websites) within the framework of international financial reporting standards An applied study between a sample of Iraqi commercial banks)
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The websites over time have become one of the important tools for communication between individuals among themselves and between individuals and economic units, and they have emerged as one of the important intangible assets to achieve income, as they have become a competitive tool and a marketing outlet for these units and a main means of communication that it uses to exercise its various major activities and achieve potential economic benefits. Therefore, there was a need to measure and display the value of these sites in the financial statements as intangible assets.  Accordingly, the purpose of the research was to determine the costs of the websites owned by the economic unit by way purchase and sites that were created i

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Publication Date
Tue Apr 30 2019
Journal Name
International Journal Of Environmental Research
A Comparative Study for the Identification of Superior Biomass Facilitating Biosorption of Copper and Lead Ions: A Single Alga or a Mixture of Algae
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Publication Date
Wed Dec 14 2016
Journal Name
Journal Of Baghdad College Of Dentistry
Comparative Evaluation of the Effect of Different Universal Adhesives and Bonding Techniques on the Marginal Gap of Class I Composite Restoration (A SEM Study)
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Background: With the increase in composite material use in posterior teeth, the concerns about the polymerization shrinkage has increased with the concerns about the formation of marginal gaps in the oral cavity environment. New generation of adhesives called universal adhesive have been introduced to the market in order to reduce the technique sensitive bonding procedures to give the advantage of using the bonding system in any etching protocol without compromising the bonding strength. The aim of the study was to study marginal adaptation of two universal adhesives (Single bondâ„¢ Universal and Prime and Bond elect) using 3 etching techniques under thermal cycling aging. Materials and Methods: Forty-eight sound maxillary first premola

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Publication Date
Tue Apr 15 2025
Journal Name
Bulletin Of The Chemical Society Of Ethiopia
Synthesis, spectral studies and antioxidant study of metal-coordinated azo-dye of pyridine and its analytical application for spectrophotometric micro-determination of copper(II)
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A novel azo dye ligand namely (2-(pyridin-3-yldiazenyl)naphthalen-1-ol (HPYNA), was synthesized by the coupling reaction of diazonium salt of 3-aminopyridine with naphthol. The palladium(II) complex for HPYNA ligand was prepared by reacting palladium(II) ions with the HPYNA ligand. These synthesized compounds were characterized using different techniques, including mass, 1H-NMR, infrared, and UV-Vis spectroscopy. The infrared results show that the azo ligand reacts as a bidentate via the oxygen atom of phenol and nitrogen atom of the azo group. The palladium(II) complex is square-planer with diamagnetic properties depending on the results of electronic transitions and magnetic sensitivity. The HPYNA ligand and palladium complex show

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Publication Date
Wed Nov 07 2018
Journal Name
Iraqi National Journal Of Nursing Specialties
The Effect of Different Types of Separating Medium On Some Physical Properties of Processing Acrylic Denture-base with Two Investment Materials: A comparative Study
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Objective(s): In the present study, glycerin is used as a substitute for tin-foil and cold mold seal (Alginate mould seal)
in the process of curing heat and cold-cure acrylic resin denture base against stone and plaster.
Methodology: 60 specimens were prepared from heat-cure acrylic resin and cold-cure acrylic resin denture base. The
study includes 12 groups of specimens depending on the type of processing, investment material and type of
separating medium that are used in curing process. Each group of them contains 5 specimens for each test.
Some of physical properties of the processed acrylic denture base that (water sorption and solubility) have been
compared with those processed using tin-foil and tin-foil substitut

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Publication Date
Thu Oct 01 2020
Journal Name
Palarch's Journal Of Archaeology Of Egypt / Egyptology
"Guarantees of Disciplinary Punishment on University Service Employee and Mechanisms for their Cancellation" Comparative study
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The university Service employee is considered one of the categories of public employees, However, The academic and administrative tasks duties that undertakes have made him a special importance and a distinguished legal status, Therefore, we find That the Iraqi legislatures assigned this category a special Law, it is the university Service law No (23) of 2008 as amended who dealt with some aspects related to serving this category, such as duties, right, condition for appointment and award of academic titles, and financial allocation, such as university service allocation, academic title allocations, and some other Provisions leaving other matters to the general service laws and employee discipline, among the matters that the legislator negl

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