Enhanced strength and toughness in 40CrNiMo steels by austempering below martensite start temperature

2021 ◽  
Author(s):  
Xiao-xiao Liu ◽  
Zheng Zhang ◽  
Jie Zhang ◽  
Ran Yang ◽  
Cheng-shuang Yu ◽  
...  
Keyword(s):  
Start Temperature ◽  
Strength And Toughness

UNS G81150

Alloy Digest ◽  
1990 ◽  
Vol 39 (11) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Heat Treating ◽  
Low Carbon ◽  
Wear Resistant ◽  
Nickel Chromium ◽  
Steel Mills ◽  
Medium Strength ◽  
Strength And Toughness

Abstract UNS G 81150 is a low-carbon nickel-chromium-molybdenum carburizing steel recommended for applications where a core of medium strength and toughness combined with a wear-resistant carburized case is sufficient. It has medium hardenability and can be used without carburizing. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: SA-453. Producer or source: Alloy steel mills and foundries.

SAE 8642

Alloy Digest ◽  
1981 ◽  
Vol 30 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Alloy Steel ◽  
High Strength ◽  
Heat Treating ◽  
Steel Mills ◽  
Wide Range ◽  
Strength And Toughness

Abstract SAE 8642 is a triple-alloy steel that can be hardened by austenitizing and quenching in oil. This steel has moderate hardenability with relative high strength and toughness, especially in the quenched-and-tempered condition. It is used in a wide range of components, parts and tools; examples are bolts, shafts, gears, wrenches, axles and housings. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-382. Producer or source: Alloy steel mills and foundries.

AISI 8627

Alloy Digest ◽  
1980 ◽  
Vol 29 (12) ◽  
Keyword(s):  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Heat Treating ◽  
Heavy Duty ◽  
Good Strength ◽  
Steel Mills ◽  
Hot Rolled ◽  
Strength And Toughness

Abstract AISI 8627 is an alloy steel of moderate-to-good hardenability for carburizing and other applications. When carburized, its core has good strength and toughness, and it is recommended for heavy-duty applications such as gears, shafts, cams, and machinery parts. Also, it can be used in the hot-rolled, normalized or water-quenched-and-tempered condition without carburizing. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-379. Producer or source: Alloy steel mills and foundries.

COLUMBIA S6

Alloy Digest ◽  
1985 ◽  
Vol 34 (8) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Tool Steel ◽  
Heat Treating ◽  
Steel Company ◽  
High Hardenability ◽  
Heat Treated ◽  
Strength And Toughness

Abstract COLUMBIA S6 is a silicon-manganese shock-resisting tool steel with fairly high hardenability. It offers superior toughness and wear resistance when compared to conventional shock-resisting steels heat treated to Rockwell C 54 to 56. For optimum strength and toughness, parts should be tempered within the range 400 to 600 F. Among its many applications are shear blades, punches, hand chisels and pneumatic tools. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-445. Producer or source: Columbia Tool Steel Company.

CARPENTER MICRO-MELT 10

Alloy Digest ◽  
1996 ◽  
Vol 45 (7) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Powder Metallurgy ◽  
Physical Properties ◽  
Tensile Properties ◽  
Tool Steel ◽  
Good Strength ◽  
Refined Microstructure ◽  
Strength And Toughness

Abstract Micro-Melt 10 is a high-vanadium tool steel A11 produced with a refined microstructure by powder metallurgy. The tool steel possesses superior wear resistance with good strength and toughness. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on wear resistance as well as forming and machining. Filing Code: TS-542. Producer or source: Carpenter.

Microstructures, Strength and Toughness of 2D Cf/(C-SiC) Composites by Chemical Vapor Infiltration

2009 ◽  
Vol 24 (5) ◽  
pp. 939-942 ◽  
Author(s):  
Zhi-Xin MENG ◽  
Lai-Fei CHENG ◽  
Li-Tong ZHANG ◽  
Yong-Dong XU ◽  
Xiu-Feng HAN
Keyword(s):  
Chemical Vapor ◽  
Chemical Vapor Infiltration ◽  
Sic Composites ◽  
Strength And Toughness ◽  
Vapor Infiltration

scholarly journals Symmetry Breakdown Related Fracture in 42CrMo4 Steel

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 344
Author(s):  
Jian Feng ◽  
Stefan Barth ◽  
Marc Wettlaufer
Keyword(s):  
Orientation Distribution ◽  
High Symmetry ◽  
Symmetry Breakdown ◽  
Pole Figures ◽  
Crystallographic Symmetry ◽  
42Crmo4 Steel ◽  
Austenite Grains ◽  
Ebsd Technique ◽  
Complete Transformation ◽  
Start Temperature

Austenite grains that underwent the f.c.c. to b.c.c. (or b.c.t.) transformation are typically composed of 24 Kurdjumov–Sachs variants that can be categorized by three axes of Bain transformations; thus, a complete transformation generally displays 3-fold symmetry in (001) pole figures. In the present work, crystallographic symmetry in 42CrMo4 steel austempered below martensite start temperature was investigated with the help of the orientation distribution function (ODF) analysis based on the FEG-SEM/EBSD technique. It is shown that, upon phase transformations, the specimens contained 6-fold symmetry in all (001), (011), and (111) pole figures of an ODF. The ODF analysis, verified by theoretical modeling, showed that under plane-strain conditions cracks prefer to propagate through areas strongly offset by the high symmetry. The origin of high symmetry was investigated, and the mechanism of the symmetry breakdown was explained.

Corrosion and corrosive‐wear behaviors of a high strength and toughness Cu–15Ni–8Sn alloy in seawater

2019 ◽  
Vol 71 (4) ◽  
pp. 593-607
Author(s):  
Jinjuan Cheng ◽  
Zheming Wang ◽  
Xueping Gan ◽  
Qian Lei ◽  
Zhou Li ◽  
...  
Keyword(s):  
High Strength ◽  
Corrosive Wear ◽  
Strength And Toughness
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