Effect of Irradiation on Mechanical Properties of Cobalt-Base Alloys

2009 ◽  
pp. 336-336-6
Author(s):  
J. G. Y. Chow
Keyword(s):  
Mechanical Properties ◽  
Cobalt Base

ESCO ALLOY 72

Alloy Digest ◽  
1966 ◽  
Vol 15 (5) ◽  
Keyword(s):  
Mechanical Properties ◽  
Thermal Shock Resistance ◽  
Elevated Temperatures ◽  
Base Alloy ◽  
Heat Treating ◽  
Corrosive Media ◽  
Temperature Performance ◽  
Cobalt Base Alloy ◽  
Shock Resistance ◽  
Cobalt Base

Abstract ESCO Alloy 72 is a cobalt-base alloy having high corrosion, heat and thermal shock resistance. It is recommended for applications requiring good mechanical properties at elevated temperatures and/or in corrosive media. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Co-48. Producer or source: ESCO Corporation.

Effect of Heat Treatment on the Microstructure and Mechanical Properties of a Co-Based Superalloy Strip

2021 ◽  
Vol 1035 ◽  
pp. 568-577
Author(s):  
Yong Ji Niu ◽  
Yue Zhang ◽  
Zhi Wei Zhang ◽  
Ning An ◽  
Yang Gao
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Grain Growth ◽  
Annealing Temperature ◽  
Functional Materials ◽  
Strengthening Effect ◽  
Microstructure And Mechanical Properties ◽  
Inflection Points ◽  
Different Temperatures ◽  
Cobalt Base

In this paper, the effect of heat treatment on the microstructure and mechanical properties of a deformed Co-Cr-Ni-W superalloy strip was investigated. The cold-rolled superalloy was annealed at different temperatures 500°C~1240°C for 10min. It was found that hardness increased in the range temperature 500°C~800°C, the annealing had aging strengthening effect, this was due to the fcc~hcp transformation. As the annealing temperature is higher than 800°C, the hardness decreased with the increase of the annealing temperature. There were four inflection points in the influence of annealing temperature on the hardness of the alloy, which were about 800°C,900°C,1050°Cand 1150°C. From 800°C to 900°C, the hardness of the alloy decreased rapidly, recovery and recrystallization was initial. From 900°C to 1050°C, the hardness of the alloy decreased slower, recrystallization was finished and grain growth slowly. The temperature reaches 1050°C to 1150°C, the hardness curve decreased rapidly, carbides dissolution and grain growth was considerable. Above 1150°C, the hardness tended to be stable, the grain growth of the alloy was obvious, and more annealing twins were also formed. As the annealing temperature increased, the tensile strength decreased and the elongation increased. Keywords Cobalt-base superalloy; Heat treatment; Microstructure; Mechanical Properties Yong-Ji Niu,Yue Zhang University of Science and Technology Beijing,Beijing 100083,china; e-mail: [email protected] Yong-Ji Niu, Zhi-Wei Zhang, Ning An, Yang Gao Beijing Beiye Functional Materials Corproration, Beijing 100192, China

WAIMET 50

Alloy Digest ◽  
1966 ◽  
Vol 15 (2) ◽  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Elevated Temperatures ◽  
Base Alloy ◽  
Heat Treating ◽  
Temperature Performance ◽  
Cobalt Base Alloy ◽  
Cobalt Base ◽  
Corrosion And Oxidation

Abstract Waimet-50 is a cobalt-base alloy recommended for applications requiring good mechanical properties at elevated temperatures. It has high resistance to corrosion and oxidation. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Co-46. Producer or source: Waimet Alloys Company.

Hot Consolidation/Devitrification of Metallic Glasses — Novel Multiphase Crystalline Alloys in Bulk Shapes With Technological Potentials

1981 ◽  
Vol 8 ◽  
Author(s):  
Ranjan Ray
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Metallic Glasses ◽  
Glassy Phase ◽  
High Strength ◽  
Excellent Thermal Stability ◽  
Phase Transform ◽  
Iron Nickel ◽  
Boride Phases ◽  
Cobalt Base

ABSTRACTIron, nickel and/or cobalt base metallic glasses with low contents of metalloids, predominantly boron, upon heat treatment at temperatures well above crystallization temperature of the glassy phase transform into ultra-finegrained (microcrystalline) alloys containing finely dispersed boride phases.Microcrystalline alloys devitrified from glassy phase are characterised by high strength, excellent thermal stability and superior corrosion/oxidation resistance. Mechanical properties of bulk microcrystalline alloys hot consolidated-devitrified from selected low metalloid metallic glass alloys are reported.

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