scholarly journals PRODUCTION BY EXPLOSION WELDING OF SEAMLESS PIPES MADE OF LAYERED METAL MATERIALS INCREASED CORROSION RESISTANCE

2020 ◽  
pp. 31-36
Author(s):  
A. E. Rosen ◽  
A. V. Pryshchak ◽  
O. N. Loginov ◽  
A. V. Horin ◽  
M. S. Gus’kov ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Arc Welding ◽  
Explosion Welding ◽  
Seamless Tube ◽  
Metal Material ◽  
Welding Technology ◽  
Metal Materials ◽  
Multilayer Metal ◽  
Internal Protector

The paper presents schemes for producing seamless pipes made of multilayer metal material with an internal protector using explosion welding technology. The developed scheme of explosion welding to the original liners for later they rolled into a seamless tube. The features of creating permanent joints from these materials using arc welding methods are indicated.

scholarly journals STRUCTURAL FORMATION OF INTERLAYER BOUNDARIES LAYERED METAL MATERIAL IN EXPLOSION WELDING

2020 ◽  
pp. 41-45
Author(s):  
A. E. Rosen ◽  
A. E. Korneev ◽  
A. V. Horin ◽  
A. V. Pryshchak ◽  
A. S. Gudenko ◽  
...  
Keyword(s):  
Structure Formation ◽  
Transition Zone ◽  
Explosion Welding ◽  
Wave Formation ◽  
Optimal Parameters ◽  
Structural Formation ◽  
Metal Material ◽  
Metal Materials

The paper presents the results of studies of interlayer boundaries of laminated metal materials with an inner protector during explosion welding. The calculation of the optimal parameters of explosion welding and their influence on wave formation in the interlayer boundaries is carried out. The structure formation of the transition zone of the interlayer boundary has been studied.

Research on Corrosion Resistance of the GTAW Joint of Duplex Stainless Steel

2012 ◽  
Vol 463-464 ◽  
pp. 415-419
Author(s):  
Gang Tian ◽  
Mei Yang ◽  
De Zhi Zeng ◽  
Yuan Hua Lin ◽  
Da Jiang Zhu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Duplex Stainless Steel ◽  
Arc Welding ◽  
Crevice Corrosion ◽  
Average Rate ◽  
Butt Weld ◽  
Gas Tungsten Arc ◽  
Welding Technology ◽  
Different Temperatures

In order to study welding performances of duplex stainless steel, gas tungsten arc welding (GTAW) was adopted to butt-weld the S31803 tube whose wall thickness is 18.26mm. Metallographic structures of the weld, base metal and heat affected zone (HAZ) were also analyzed. Crevice corrosion resistance of the GTAW joint in 6%FeC13 + 0.05mol/L HCl solution in different temperatures had been tested according to ASTM G48. The results showed that with rising of temperature the average rate of crevice corrosion increased but the growth of corrosion rate slowed when the temperature reached a certain degree. There was corrosion groove in submarginal area of the crevice and the area near HAZ of the groove was much deeper. The results provided a reference to welding technology of S31803 DSS and also provided experiment resources for research on welding of the DSS.

INCONEL FILLER METAL 52

Alloy Digest ◽  
1992 ◽  
Vol 41 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Arc Welding ◽  
Filler Metal ◽  
Pressurized Water Reactors ◽  
Pressurized Water ◽  
High Chromium ◽  
Inconel Alloy ◽  
Gas Tungsten Arc ◽  
Alloy 690 ◽  
Water Reactors

Abstract INCONEL FILLER METAL 52 is a high chromium filler metal for gas-metal-arc and gas-tungsten-arc welding of Inconel Alloy 690 (See Alloy Digest Ni-266, March 1981). Higher chromium is beneficial in resisting stress-corrosion cracking in high purity water for pressurized water reactors and for resistance to oxidizing acids. This datasheet provides information on composition and tensile properties. It also includes information on corrosion resistance as well as joining. Filing Code: Ni-412. Producer or source: Inco Alloys International Inc..

INCO-WELD B ELECTRODE

Alloy Digest ◽  
1984 ◽  
Vol 33 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Tensile Properties ◽  
Arc Welding ◽  
Base Alloy ◽  
Heat Treating ◽  
Alternating Current ◽  
Nickel Base Alloy ◽  
Shielded Metal Arc Welding ◽  
Metal Arc Welding ◽  
Nickel Base

Abstract INCO-WELD B is a nickel-base alloy developed for shielded metal-arc welding of nickel steels for cryogenic applications. It is similar to INCO-WELD A Electrode (Alloy Digest Ni-305, November 1984) except that it is designed for use with alternating current to minimize magnetic arc blow. It can be operated in all welding positions. This datasheet provides information on composition and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-307. Producer or source: Huntington Alloys.

TRI-MARK TM-115

Alloy Digest ◽  
1983 ◽  
Vol 32 (8) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Arc Welding ◽  
High Strength ◽  
Heat Treating ◽  
Low Alloy Steels ◽  
Mining Equipment ◽  
Alloy Steels ◽  
Temperature Impact ◽  
Welding Electrode

Abstract TRI-MARK TM-115 is a gas-shielded flux-cored welding electrode for continuous high deposition are welding. It is designed specifically for semiautomatic and automatic arc welding of high-strength low-alloy steels and quenched-and-tempered steels. This gas-sheilded tubular wire can be used for single and multiple-pass welding. It has outstanding low-temperature impact properties. Its applications including mining equipment, large vehicles and similar items. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating, machining, and joining. Filing Code: SA-392. Producer or source: Tri-Mark Inc..

scholarly journals The Interfacial Characterization and Performance of Cu/Al-Conductive Heads Processed by Explosion Welding, Cold Pressure Welding, and Solid-Liquid Casting

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 237 ◽  
Author(s):  
Yanni Wei ◽  
Hui Li ◽  
Fu Sun ◽  
Juntao Zou
Keyword(s):  
Corrosion Resistance ◽  
Bonding Strength ◽  
Explosive Welding ◽  
Slag Inclusion ◽  
Explosion Welding ◽  
Bonding Interface ◽  
Pressure Welding ◽  
And Performance ◽  
Solid Liquid ◽  
Cold Pressure

The Cu/Al composites conductive head is widely used in hydrometallurgy as the core component of cathode plate. Its conductive properties directly affect the power consumption, and the bonding strength and corrosion resistance determine the conductive head service life. The Cu/Al conductive head prepared by explosion welding, cold pressure welding, and solid-liquid casting methods were investigated in this paper. The interface microstructure and compositions were examined by scanning electron microscope and X-ray energy dispersive spectrometry. The bonding strength, interface conductivity, and the corrosion resistance of three types of joints were characterized. The Cu/Al bonding interface produced by explosive welding presented a wavy-like morphology with typical defects and many of brittle compounds. A micro-interlocking effect was caused by the sawtooth structures on the cold pressure welding interface, and there was no typical metallurgical reaction on the interface. The Cu/Al bonding interface prepared by solid-liquid casting consisted mainly of an Al-Cu eutectic microstructure (Al2Cu+Al) and partial white slag inclusion. The thickness of the interface transition layer was about 200–250 µm, with defects such as holes, cracks, and unwelded areas. The conductivity, interfacial bonding strength, and corrosion resistance of the conductive head prepared by explosive welding were superior to the other two.

scholarly journals Investigation of Microstructure and Corrosion Resistance of Dissimilar Welded Joint between 304 Stainless Steel and Pure Copper

2019 ◽  
Vol 1 (3) ◽  
pp. 76-82
Author(s):  
Sorush Niknamian
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Arc Welding ◽  
Pure Copper ◽  
Welding Process ◽  
Steel Part ◽  
304 Stainless Steel ◽  
Dissimilar Metals ◽  
304L Stainless Steel ◽  
Shielded Metal Arc Welding

Nowadays, welding of dissimilar metals has become significant. In this process, a number of parameters including but not limited to type of electrode, amount of current, preheating temperature, and welding rate, that are essential to be taken into account. For welding of dissimilar metals, various methods are exploited including shielded metal arc welding (SMAW) and gas tungsten arc welding (GTAW). The stimulus for studying welding of 304L stainless steel to pure copper originates from difficulties in joining copper parts of           water-circulating molds to their steel part. In this study, the welding is performed on plates of steel and copper using SMAW, GTAW and combined SMAW+GTAW welding methods with    EL-CuMn2, ENiCrMo-6 and ER70S-4 electrodes. In order to investigate the microstructure and corrosion resistance behavior of welds, the samples were characterized using microstructural study and polarization test. It was observed that among all four welding methods, only combined SMAW+GTAW welding process resulted in successful joint between 304L stainless steel and copper. Both obtained joints possess suitable microstructure and corrosion resistance.

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