نتایج جستجو برای: carbon steel

تعداد نتایج: 354405  

Journal: :نشریه دانشکده فنی 0
خطیب الاسلام صدر نژاد اسدالله حراتی

low carbon steel samples were both shot into and inoculated with titanium in order to improve mechanical properties such as strength and toughness. sem observations and x-ray analyses revealed that titanium nitride and titanium carbonitride precipitates being scattered in the ferrite substrate reduce the grain size in all as-cast, heat-treated and as-rolled cases. the growth of the grains at hi...

2004
V. O. de Haan P. de Jong

OF CARBON STEEL PLATES USING PULSED EDDY CURRENTS V.O. de Haan and P. de Jong 1 BonPhysics Research and Investigations BV, Putterhoek, The Netherlands; 2 Röntgen Technische Dienst bv, Rotterdam, The Netherlands Abstract: It is well know from literature that Pulsed Eddy Currents generated by switching off a stationary current through a coil above a carbon steel plate can be used to measure the t...

2017
Ye Duan Nan Li Hailin Mu Shusen Gui

In this paper, a two-stage dynamic game model of China’s iron and steel industry is constructed. Carbon tax levy, product subsidy, carbon capture and sequestration (CCS) and other factors are included in the emission reduction mechanism. The effects of emissions reduction and the economic impact of China’s overall steel industry (and that of its six main regions) are investigated for the first ...

2010
J Groves

OBJECTIVE To determine whether the author's 20.9 lb (9.5 kg) carbon frame bicycle reduced commuting time compared with his 29.75 lb (13.5 kg) steel frame bicycle. DESIGN Randomised trial. SETTING Sheffield and Chesterfield, United Kingdom, between mid-January 2010 and mid-July 2010. PARTICIPANTS One consultant in anaesthesia and intensive care. MAIN OUTCOME MEASURE Total time to complet...

2015
Ji-Hua Zhu Liangliang Wei Miaochang Zhu Hongfang Sun Luping Tang Feng Xing

This paper investigates the deterioration of reinforced concrete with carbon fiber reinforced polymer (CFRP) anode after polarization. The steel in the concrete was first subjected to accelerated corrosion to various extents. Then, a polarization test was performed with the external attached CFRP as the anode and the steel reinforcement as the cathode. Carbon fiber reinforced mortar and conduct...

Journal: :Annals of oncology : official journal of the European Society for Medical Oncology 2007
C Bosetti P Boffetta C La Vecchia

BACKGROUND Exposure to polycyclic aromatic hydrocarbons (PAHs) has been reported in several industries, including those of the aluminum production, coal gasification, coke production, iron and steel foundries, coal tar and related products, carbon black and carbon electrodes production. PATIENTS AND METHODS This paper reviews the results from cohort studies conducted on workers exposed to PAH...

The fundamental frequencies and mode shapes of steel and carbon fiber–reinforced plastic (CFRP) cylindrical shells with steel inserts were investigated using finite element analysis and modal testing. The free-free boundary condition was tested with modal testing using the roving hammer method and verified by finite element analysis using ABAQUS. The results show good agreement between the test...

A. khalkhali, M. H. Shojaeefard S. O. Shahbaz

Surface roughness (SR) has an adverse effect on the appearance of low-carbon steel parts, formed in the asymmetric incremental sheet forming (AISF) process, particularly those requiring painting operation. The purpose of this study is to investigate the effects of AISF process parameters on the surface roughness of an asymmetric part formed on low-carbon steel sheets. The parameters are feed ra...

Ardestani, M., Abbasi, A., Vanaee, M.,

In this research, the dissimilar welding of St52 plain carbon steel to W400 wear resistant steel and its effect on the microstructure and wear properties of the wear resistant steel was investigated. The wear resistant steel was produced via direct quenching with nominal hardness of 400 HB. Gas tungsten arc welding was used for joining process. The results showed that welding led to hardness re...

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