Investigation of structure and heat treatment of various grades of corrosion-resistant alloy VDM® alloy C-4

The microstructure and mechanical properties of a new corrosion-resistant alloy GH945 with high strength for oil and gas production were studied in this paper. The results showed that the main precipitations of GH945 alloy after solution heat treatment and two-stage age hardening treatment were γ′ and γ′′ phase, MC-type carbide, σ phase and M23C6-type carbide. The increase of primary aging temperature not only promoted the precipitation of σ phase and film of continuous M23C6 carbide on the grain boundary, but also led to the coarsening of γ′ and γ′′ phase, which resulted in the decrease of yield strength and impact toughness. Alloy with high Nb content had high strength but low impact toughness. The following heat treatment was preferably used to obtain the combination of high strength and excellent ductility and toughness for GH945 alloy: 1010 °C/70 min, WQ+ 735 °C/9 h + FC to 615 °C/18 h, AC.

Download Full-text

Review for "Hot deformation characteristics and kinetics analysis for Ni‐based corrosion resistant alloy"

10.1002/eng2.12323/v1/review4 ◽

2020 ◽

Author(s):

Mari Luz Penalva

Keyword(s):

Hot Deformation ◽

Deformation Characteristics ◽

Kinetics Analysis ◽

Corrosion Resistant ◽

Resistant Alloy ◽

Corrosion Resistant Alloy

Download Full-text

INCONEL ALLOY 22

Alloy Digest ◽

10.31399/asm.ad.ni0624 ◽

2005 ◽

Vol 54 (3) ◽

Keyword(s):

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

Pitting Corrosion ◽

Corrosion Resistant ◽

Inconel Alloy ◽

Resistant Alloy ◽

Alloy 22 ◽

Corrosion Resistant Alloy

Abstract Inconel alloy 22 is an advanced corrosion-resistant alloy with exceptional resistance to aqueous and pitting corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as joining. Filing Code: Ni-624. Producer or source: Special Metals Corporation.

Download Full-text

INCO-WELD 725NDUR

Alloy Digest ◽

10.31399/asm.ad.ni0540 ◽

1998 ◽

Vol 47 (4) ◽

Keyword(s):

Fracture Toughness ◽

Corrosion Resistance ◽

Tensile Properties ◽

Filler Metal ◽

Heat Treating ◽

Oil Exploration ◽

Corrosion Resistant ◽

Resistant Alloy ◽

Corrosion Resistant Alloy

Abstract Inco-Weld 725NDUR filler metal is a corrosion-resistant alloy similar to Inconel Filler Metal 625 (see Alloy Digest Ni-327, December 1985) but with higher strength and hardness. Applications include the oil exploration down-hole equipment market. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: Ni-540. Producer or source: Inco Alloys International Inc.

Download Full-text

ALLEGHENY LUDLUM AL 29-4C

Alloy Digest ◽

10.31399/asm.ad.ss0554 ◽

1993 ◽

Vol 42 (11) ◽

Keyword(s):

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

Heat Exchangers ◽

Power Plants ◽

High Strength ◽

Corrosion Resistant ◽

Resistant Alloy ◽

Corrosion Resistant Alloy ◽

Geothermal Power

Abstract AL 29-4C is a highly corrosion resistant alloy with a relatively high strength. This combination allows the use of lighter gage tubes, and has led to its use in the brine heat exchangers of geothermal power plants. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: SS-554. Producer or source: Allegheny Ludlum Corporation.

Download Full-text

COOPER ALLOY 14S

Alloy Digest ◽

10.31399/asm.ad.ss0158 ◽

1964 ◽

Vol 13 (7) ◽

Keyword(s):

Heat Treatment ◽

Fracture Toughness ◽

Corrosion Resistance ◽

High Temperature ◽

Physical Properties ◽

Tensile Properties ◽

Heat Treating ◽

Corrosion Resistant ◽

Temperature Performance ◽

Corrosion Resistant Alloy

Abstract Cooper Alloy 14S is an abrasion, heat and corrosion resistant alloy steel containing 12% chromium. It can be hardened by heat treatment. It is recommended for pumps and valves in the cast form. 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: SS-158. Producer or source: Cooper Alloy Corporation.

Download Full-text