Surface Morphology and Corrosion Behavior of Electrolytic Coatings in Different Aqueous Solutions

2013 ◽  
Vol 594-595 ◽  
pp. 585-589
Author(s):  
Siti Hawa Mohamed Salleh ◽  
Mohd Nazree Derman ◽  
Mohd Zaidi Omar ◽  
Rohaya Abdul Malek
Keyword(s):  
Mechanical Properties ◽  
Surface Morphology ◽  
Aqueous Solutions ◽  
Corrosion Behavior ◽  
Stainless Steels ◽  
Surface Modifications ◽  
Heat Treatments ◽  
Martensitic Stainless Steels ◽  
Corrosion Rates ◽  
Corrosive Environments

SS440C steels show potential as highest mechanical properties compared to others martensitic stainless steels. As their properties can be altered by some particular heat treatments, this steel is suitable for a extensive ranges of applications such as bearings, gage blocks, races, valve parts and many other manufacturing important components. Unfortunately, bare SS440C substrates corrode too quickly under corrosive environments. Surface modifications that are able to reduce corrosion rates to suitable levels will allow SS440C to become a reality for much more applications [1-.

scholarly journals CONSIDERATIONS ON HEAT TREATMENTS OF MARTENSITIC STAINLESS STEELS

2018 ◽  
Vol 20 ◽  
pp. 143-146
Author(s):  
Valeriu COMICI ◽  
◽  
Ioan GIACOMELLI ◽  
Maria STOICANESCU ◽  
Adriana ZARA ◽  
...  
Keyword(s):  
Stainless Steels ◽  
Heat Treatments ◽  
Martensitic Stainless Steels

CARLSON ALLOY C200 and C201

Alloy Digest ◽  
1994 ◽  
Vol 43 (6) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Hydrogen Chloride ◽  
Stainless Steels ◽  
Nickel Alloys ◽  
Heat Treating ◽  
Electrical Conductivities ◽  
Corrosive Environments

Abstract Carlson Alloys C200 and C201 are wrought forms of nickel with carbon the only difference in composition. The metal has excellent resistance to dry chlorine and hydrogen chloride and caustic alkalis. The alloys combine good mechanical properties with excellent resistance to corrosive environments. Thermal and electrical conductivities are considerably higher than stainless steels or nickel alloys they possess. Excellent ductility at sub-zero temperatures. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-456. Producer or source: G.O. Carlson Inc.

CARLSON ALLOY 926 Mo

Alloy Digest ◽  
2002 ◽  
Vol 51 (1) ◽  
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Stainless Steels ◽  
Nickel Alloys ◽  
Austenitic Stainless Steels ◽  
Cost Effective ◽  
Oil Platforms ◽  
Alloy 926 ◽  
Corrosive Environments

Abstract Carlson alloy 926 Mo is a superaustenitic 6% Mo stainless steel that resists highly corrosive environments and has excellent chloride pitting, crevice, and stress-corrosion cracking resistance. It can be utilized where the performance of conventional austenitic stainless steels is bor-derline, or as a cost-effective substitute for nickel alloys. The higher mechanical properties that allow designs with thinner sections than con-ventional stainless steels are highly desired for oil platforms. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: SS-842. Producer or source: G.O. Carlson Inc., Electralloy.

Surface Morphology Investigation of Au and Pt Electroless Contact on ZnCdTe Crystal by Atomic Force Microscopy

1995 ◽  
Vol 378 ◽  
Author(s):  
Zhiyu Hu ◽  
Zhihua Hu ◽  
K. T. Chen ◽  
M. A. George ◽  
A. Burger ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Grain Size ◽  
Surface Morphology ◽  
Aqueous Solutions ◽  
Single Crystals ◽  
Platinum Metal ◽  
Heat Treatments ◽  
Metal Contacts ◽  
Force Microscopy ◽  
Atomic Force

AbstractGold and platinum metal contacts have been deposited on the cleaved and etched surfaces of ZnCdTe single crystals by “electroless” method from AuCl3, PtCl2 and PtCl4 aqueous solutions with different concentrations and deposition times. Atomic Force Microscopy (AFM) has been employed to reveal the surface morphology of metal contacts and it was found that for AuCl3 and PtCl2 solutions, the surface morphology and grain size are similar, and uniformly distributed. The surface morphology on contact made from PtCl4 shows a larger grain size, higher roughness and non-uniformity. The effect of different heat treatments to the surface morphology will be discussed.

Properties of Precipitation Hardening 17-4 PH Stainless Steel Manufactured by Powder Metallurgy Technology

2013 ◽  
Vol 811 ◽  
pp. 87-92 ◽  
Author(s):  
Jan Kazior ◽  
Aneta Szewczyk-Nykiel ◽  
Tadeusz Pieczonka ◽  
Marek Hebda ◽  
Marek Nykiel
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Powder Metallurgy ◽  
Ferritic Stainless Steel ◽  
Process Parameters ◽  
Stainless Steels ◽  
Precipitation Hardening ◽  
High Strength ◽  
Martensitic Stainless Steels ◽  
Heat Treated

Alloys from austenitic and ferritic stainless steel found to be satisfactory for a great many applications. However, for applications that require higher levels of strength and hardness from the martensitic grades are frequently specified. Martensitic stainless steels offer significantly higher strengths but have to low ductility. For this reason for application where high levels of strength and a moderate ductility is required, the precipitation strengthened stainless steels are often considered. One of the most popular alloy of this kind of stainless steel is 17-4 PH. The aim of the present paper was to examined the influence the process parameters in conventional powder metallurgy processing on the mechanical properties of the 17-4 PH alloy in both as-sintered and heat treated conditions. In was found that temperature of aged is a very sensitive parameter for obtained high strength and acceptable ductility.

scholarly journals Effect of Sn Content on the Microstructure, Mechanical Properties and Corrosion Behavior of Biodegradable Mg–x (1, 3 and 5 wt.%) Sn–1Zn–0.5Ca Alloys

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2378 ◽  
Author(s):  
Zheng-Xue Zhao ◽  
Zhen-Ming Hua ◽  
Da-Wei Li ◽  
Dong-Song Wei ◽  
Yan Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Corrosion Behavior ◽  
Tensile Yield Strength ◽  
Biodegradable Implants ◽  
Corrosion Rates ◽  
Mg2sn Phase ◽  
Mechanical Properties And Corrosion ◽  
Hot Rolled ◽  
Hank’S Solution

The microstructure, mechanical properties and corrosion behavior of hot–rolled Mg–xSn–1Zn–0.5Ca (x = 1, 3 and 5 wt.%) alloys were investigated for possible application as biodegradable implants. The hot–rolled Mg–xSn–1Zn–0.5Ca alloys consisted of α-Mg matrix and Mg2Sn phase. The number of the Mg2Sn particles significantly increased and the grains were gradually refined (14.2 ± 1.5, ~10.7 ± 0.7 and ~6.6 ± 1.1 μm), while the recrystallized fraction significantly decreased with the increase in the Sn content, the Mg–1Sn–1Zn–0.5Ca alloy was almost completely recrystallized. Ultimate tensile strength (UTS) and tensile yield strength (TYS) increased slightly, reaching maximum values of 247 MPa and 116 MPa, respectively, for the Mg–5Sn–1Zn–0.5Ca alloy, and the elongation decreased with the increase in the Sn content; the Mg–1Sn–1Zn–0.5Ca alloy showed the highest elongation (15.3%). In addition, immersion tests and electrochemical measurements in Hank’s solution revealed that the corrosion rates of Mg–xSn–1Zn–0.5Ca alloys increased with the increase in the Sn content. A model of the corrosion behavior was discussed for hot–rolled Mg–xSn–1Zn–0.5Ca alloys in Hank’s solution. Among the Mg–xSn–1Zn–0.5Ca (x = 1, 3 and 5 wt.%) alloys, Mg–1Sn–1Zn–0.5Ca alloy exhibits optimal corrosion resistance and appropriate mechanical properties.

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