تاثیرات خوردگی طبیعی در خواص شیمایی و مکانیکی فولادهای سازه ای
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تاثیرات خوردگی طبیعی در خواص شیمایی و مکانیکی فولادهای سازه ای

عنوان فارسی مقاله: تاثیرات خوردگی طبیعی در خواص شیمایی و مکانیکی فولادهای سازه ای
عنوان انگلیسی مقاله: Effects of naturally-progressed corrosion on the chemical and mechanical properties of structural steels
مجله/کنفرانس: سازه ها – Structures
رشته های تحصیلی مرتبط: مهندسی عمران، مهندسی مواد
گرایش های تحصیلی مرتبط: سازه، خوردگی و حفاظت از مواد
کلمات کلیدی فارسی: خوردگی طبیعی، فولاد سازه ای، خواص مکانیکی، خواص شیمایی، خورندگی داخل آب شیرین، خورندگی داخل آب دریا، دماهای پایین
کلمات کلیدی انگلیسی: Naturally-progressed corrosion, Structural steel, Mechanical properties, Chemical properties, Freshwater immersion corrosion, Seawater immersion corrosion, Low temperatures
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.istruc.2020.06.014
دانشگاه: Indian Institute of Technology, Indore, India
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2020
ایمپکت فاکتور: 2.260 در سال 2019
شاخص H_index: 17 در سال 2020
شاخص SJR: 0.828 در سال 2019
شناسه ISSN: 2352-0124
شاخص Quartile (چارک): Q1 در سال 2019
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 19
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E15104
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Test specimens


3- Methods for corrosion tests


4- Test results on the chemical properties of corroded specimens


5- Test results on the mechanical properties of corroded specimens


6- Concluding remarks


Declaration of Competing Interest


Acknowledgements


References

نمونه متن انگلیسی مقاله

Abstract


The objective of the paper was to experimentally examine the effects of corrosion wear on the chemical and mechanical properties of structural steels. Naturally-progressed corrosion testing on structural steel specimens was conducted during a period of 12 months. Three types of structural steels were tested: mild steel (grade A), AH32 steel, and DH32 steel. Different conditions of the corrosive environment were applied with three dry or water-immersed conditions, namely air (dry), freshwater immersion and seawater immersion, and with three temperatures, namely room temperature (18 °C), 0 °C, and −۱۰ °C. The chemical and mechanical properties of structural steels were measured before and after the corrosion testing. Based on the test results, the characteristics of corrosion progression rate for structural steels were studied and reported in a separate paper [21, doi: https://doi.org//10.1080/17445302.2019.1664128]. It is concluded that corrosion does not affect the chemical and mechanical properties of structural steels. Details of the test database were documented.


Introduction


Steel is a common material used for the construction of naval, offshore, mechanical, and civil engineering structures. As steel structures get older, their safety and integrity can suffer from corrosion wear which is affected by various parameters of influence in the corrosive environment, including oxygen content, salinity, pH value of water, temperature, atmospheric pressure, suspended solids, velocity of water waves, together with various physical and chemical factors of material [1–۵]. Land-based steel structures may be exposed to the immersion of freshwaters or related humidity while the surfaces of steel ship and offshore structures at sea are usually touched on seawaters [6]. In winter season or Arctic area, the operational temperature of such structures is in sub-zero temperatures (or lower than the room temperature).


To evaluate the structural integrity with corrosion damage at the level of steel structural members or entire structures, it is essential to identify the chemical and mechanical properties of corroded structural steels, i.e., at the level of materials. It is generally considered that corrosion does not affect the chemical and mechanical properties of structural steels [3], but obvious evidences or test database are lacking in the literature and thus some studies attempted to derive computational models that the corrosion wear was dealt with as a parameter of influence on the mechanical properties of structural steels [7–۱۱]. The objective of this paper was to obtain the physical test database to investigate the effects of corrosion wear on the chemical and mechanical properties of structural steels, and ultimately to contribute to the prevention of such an unnecessary confusion on the issue.

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