Tungsten carbide (WC) hardfacing coating technique is widely used to improve the performance of carbon steel blade exposed to acidic and abrasive conditions during production. This paper deals with the influence of welding parameters on the microstructure and carbide distribution of WC. WC hardf...

Corrosion tests of ferritic steel and ferritic-martensitic steel were carried out in supercritical carbon dioxide at 550–600 °C under 15 MPa. The oxidation kinetics follows near-cubic law in all cases. Ferritic-martensitic steel P92 exhibited better corrosion resistance than ferritic steel T22...

In this work, we present a combined method to produce a superhydrophobic ceramic coating on carbon steel. A hot-dip aluminizing approach is proposed for fabricating an aluminum coating on the carbon steel surface. This aluminum coating is anodized to produce a ceramic oxide layer. The ceramic co...

The carbon and chromium contents significantly affected the microstructure evolution in the stir zones of medium-carbon steels during the friction stir welding (FSW). The stir zone of the 0.2%C–4%Cr steel has a high strength over 1.5 GPa with a good elongation of 30.3%, while the stir zones of ...

In this work, friction stir welding (FSW) was used to weld dissimilar metals (Type 304 stainless steel (SS304) and Q235 low carbon steel). The microstructure, interfacial characteristics, residual stress distribution and mechanical properties of the joint were investigated. The results show that...

ABSTRACTA total of 50 bolted connections of carbon steel and stainless steel subjected to monotonic loading and cyclic loading conditions were investigated. The connection specimens were fabricated from carbon steel grades 1.20 mm G500 and 1.90 mm G450, as well as cold-formed stainless steel typ...

The effect of piperazine (PZ) degradation on carbon steel corrosion was studied at extremely reducing stripper conditions. The corrosion rate was measured with electrical resistance (ER) corrosion probes, and coupons were used to collect corrosion products for characterization. The measured corr...

Although structural fire performance of hot-rolled carbon steel columns is already well known, limited design specifications are available for stainless steel columns. European fire design guidelines allow for a different material strength and stiffness degradation at high temperatures for stain...

It has been reported that phytochrome A (phyA) and phytochrome B (phyB) are potent regulators of plant defense. However, the mechanisms that phytochromes use to interfere with plant resistance to viral infection remain largely unclear. In this study, Chilli veinal mottle virus (ChiVMV) was used ...

Although phytochrome A (phyA) and phyB have been functionally characterized, functions of phyC in rice growth and development have remained elusive because of the functional dependency of phyC on the phyB protein. In this study, we introduced PHYB(C364A), in which the chromophore attachment site...

A double-blind, randomized, comparative study of mepartricin (SPA-S-160) and placebo was performed on 36 patients who complained of obstructive symptomatology caused by prostatic hypertrophy. Treatment was continued for 60 days at a dose of 150,000 IU/d (three capsules/d) of active substance. Al...

ObjectivesTo verify the efficacy of mepartricin versus placebo with regard to symptom improvement in patients with chronic nonbacterial prostatitis/chronic pelvic pain syndrome (CPPS) and to verify a relation between hormonal levels and clinical improvement in these patients.

The effects induced by oral administration of 0, 5 and 20 mg of meparticin kg−1of body weight for 28 days (group 1, 2 and 3, respectively) upon prostatic estrogen, androgen, α1- andβ -adrenergic receptor concentrations and on estradiol and testosterone serum levels in adult male rats were stud...

Polysulfone (PSf) nanocomposite ultrafiltration (UF) membrane was prepared using polystyrene silicomolybdate (SiMo/PS) nanoparticles (NPs). The spherical SiMo/PS particles can be simply doped into a PSf membrane via the phase inversion process, which allows the hydrophilic SiMo/PS spheres to mig...

A highly negatively charged borotungstic acid H5BW12O40 had been tested as homogeneous catalyst in esterification. Compared with common used H3PW12O40, it displayed a higher conversion (98.7%) and excellent efficiency (96.2%) due to its high amount of protons in methanol. In order to overcome th...

Proton-conducting polymer electrolytes consisting of borotungstic acid (BWA) and polyacrylamide (PAM) were developed. The addition of BWA to PAM progressively improved the electrolyte conductivity. The as-fabricated BWA-PAM electrolyte exhibited a high ionic conductivity of ca. 27 mS cm−1, but s...

Boron (B) is highly mobile in the environment. This characteristic easily leads to plant deficiency upon leaching from soil or to toxicity upon accumulation. Boric acid may interact with mineral surfaces as well as natural organic matter. In this study, the boric acid interaction with humic acid...

In this paper, a chromate free conversion coating based on titanium/zirconium salts and aminotrimethylene phosphonic acid (ATMP) was prepared on 7A52 aluminum alloy. The morphology and composition of conversion coating were investigated by test measurements of SEM、EDS、XRD and FT-IR. The adhesi...

Tetrafluoroborate anion (BF4−) is found in the streams of flue-gas desulfurization and borosilicate glasses etching which deteriorates water quality through slow hydrolysis into boric acid and fluoride. Decomposition and electrocoagulation (EC) of BF4− were studied using metallic aluminum as the...

Deep eutectic solvents are potential alternatives to volatile petrochemical solvents because they are comparatively inexpensive and easy to prepare. Further, the melting point of eutectic solvents may drop remarkably when mixing two components, the hydrogen bond donor and acceptor, together. A s...