scholarly journals Effect of Carbon Content and Elements Mo and V on the Microstructure and Properties of Stainless Steel Powder Surfacing Layer

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 371
Author(s):  
Taixu Xu ◽  
Chongyi Wei ◽  
Xiao Han ◽  
Jihui Liu ◽  
Zhijun He ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Impact Toughness ◽  
Carbon Content ◽  
Steel Powder ◽  
Stainless Steel Powder ◽  
Low Grade ◽  
Microstructure And Properties ◽  
The Impact

This study evaluated the effect of an increase in carbon content and the presence of the elements Mo and V on the microstructure and properties of the surfacing layer of stainless steel powder for knives and scissors production. Various types of high-quality stainless steel powder (5Cr13, 8Cr13, and 8Cr13MoV) were deposited on the surface of low-grade stainless steel used to produce knives and scissors (2Cr13). The microstructure, comprehensive hardness, wear resistance, impact toughness, and corrosion resistance of the stainless steel powder surfacing layers were tested and analyzed. Results indicate that the increase in carbon content and the presence of Mo and V improve the comprehensive hardness and wear resistance of the stainless steel powder surfacing layer, and both exert the superposition effect. However, the increase in carbon content and the presence of Mo and V slightly influence the impact toughness of the surfacing layer. In addition, the increase in carbon content significantly reduces the corrosion resistance of the surfacing layer. This adverse effect is reduced when Mo and V exist. Other advantages of the presence of Mo and V in the stainless steel powder surfacing layer include the refinement of grain size, reduction of carbide particle size, and improvement of the metallurgical bonding of the surfacing layer and the matrix.

Effect of heat treatment on structure and properties of GTAW and laser beam welded super-duplex stainless steel joints

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040061 ◽  
Author(s):  
Kai Qi ◽  
Guangjin Wang ◽  
Yunxue Jin ◽  
Jiayang Gu ◽  
Zhongyu Zhang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Impact Toughness ◽  
Laser Beam ◽  
Duplex Stainless Steel ◽  
Solution Treatment ◽  
Solid Solution Treatment ◽  
Pitting Corrosion Resistance ◽  
The Impact

Duplex stainless steel, consisting of ferrite and austenite, has good corrosion resistance and is often used in harsh marine environments. In this paper, welding on SAF2507 duplex stainless steel with 5 mm thickness was finished by laser beam welding (LBW) and gas tungsten arc welding (GTAW). The post-weld solid solution treatment was also conducted at temperature of [Formula: see text]C followed with cooling by water after 1 h. The results showed that both LBW and GTAW could produce well-produced welds. The microstructures of the welds were composed of ferrite and austenite phases. After solid solution treatment at [Formula: see text]C, the two-phase structure of LBW joint became uniform, while [Formula: see text] phase was produced in GTAW joint. The impact test of welded joints at room-temperature was carried out. After solid solution treatment at [Formula: see text]C, the impact toughness of LBW joints obviously increased, but the impact toughness of GTAW joint decreased with the fracture morphology of brittle mode. The electrochemical experiments on the welded joints showed that the pitting corrosion resistance of LBW joints improved after solid solution treatment, while the pitting corrosion resistance of GTAW joints decreased.

CTS-BD30P ALLOY

Alloy Digest ◽  
2013 ◽  
Vol 62 (8) ◽  
Keyword(s):  
Stainless Steel ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Martensitic Stainless Steel ◽  
Heat Treating ◽  
Powder Metal ◽  
High Concentration ◽  
Vanadium Carbides

Abstract Carpenter CTS-BD30P alloy is a powder metal processed, air-hardening, martensitic stainless steel that offers corrosion resistance comparable with Type 440C stainless, combined with excellent toughness and wear resistance attributed to a high concentration of vanadium carbides. The Carpenter CTS family of alloys is used for many blade applications. This datasheet provides information on composition and physical properties. It also includes information on corrosion resistance as well as heat treating and powder metal forms. Filing Code: SS-1154. Producer or source: Carpenter Specialty Alloys.

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