Local Deformation of Microsized Amorphous Powder at Low Temperatures

2013 ◽  
Vol 586 ◽  
pp. 210-213
Author(s):  
Jozef Miškuf ◽  
Kornel Csach ◽  
Alena Juríková ◽  
Elena D. Tabachnikova ◽  
Vladimir Z. Bengus
Keyword(s):  
Shock Wave ◽  
Fracture Toughness ◽  
Fracture Surface ◽  
Low Temperatures ◽  
Brittle Failure ◽  
Amorphous Alloys ◽  
Amorphous Powder ◽  
Local Deformation ◽  
Failure Characteristics ◽  
Bulk Amorphous Alloys

The investigations of the failure characteristics of Fe76Ni2Si9B13 bulk amorphous alloys prepared by shock wave consolidation of powders were performed. The strength decreased with the lowering temperature from 300 to 4.2 K. For this temperature interval, the brittle failure prevails. The failure propagates across particles as well as along particle boundaries. The riverlike pattern with fine dimples was observed on the fracture surface. The apparent surface energy and the fracture toughness values estimated by means of the fractography were similar to these for typical brittle materials.

Low Temperature Failure of Fe76Ni2Si9B13 Compacted from Amorphous Glass Powder

2009 ◽  
Vol 409 ◽  
pp. 358-361
Author(s):  
Jozef Miškuf ◽  
Kornel Csach ◽  
Alena Juríková ◽  
Elena D. Tabachnikova ◽  
Vladimir Z. Bengus ◽  
...  
Keyword(s):  
Fracture Surface ◽  
Brittle Failure ◽  
Amorphous Alloys ◽  
Fracture Stress ◽  
Glass Powder ◽  
Amorphous Powder ◽  
Fracture Surface Morphology ◽  
Explosive Compaction ◽  
Bulk Amorphous Alloys ◽  
Amorphous Glass

The fracture surface morphology of Fe76Ni2Si9B13 bulk amorphous alloys failed in compression at temperatures from 4.2 to 300 K was investigated. The samples were prepared by the explosive compaction technique from amorphous powder. It has been found that fracture stress decreases with temperature from 300 to 4.2 K. In this temperature range, the brittle failure prevails. The failure propagates across particles and along particle boundaries too. The fracture micromorphology is riverlike pattern with fine dimples.

Effect of compositional variation on the shock wave response of bulk amorphous alloys

2012 ◽  
Vol 112 (6) ◽  
pp. 063529 ◽  
Author(s):  
T. Jaglinski ◽  
Stefan J. Turneaure ◽  
Y. M. Gupta
Keyword(s):  
Shock Wave ◽  
Amorphous Alloys ◽  
Compositional Variation ◽  
Bulk Amorphous Alloys ◽  
Wave Response

Effect of cast process and microalloying on the fracture toughness of Zr-based bulk amorphous alloys

2014 ◽  
Vol 614 ◽  
pp. 87-93 ◽  
Author(s):  
Y.S. Chang ◽  
K.T. Hsu ◽  
J.B. Li ◽  
P.H. Tsai ◽  
J.S.C. Jang ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Amorphous Alloys ◽  
Bulk Amorphous Alloys

In situ fracture observation and fracture toughness analysis of Zr-based bulk amorphous alloys

2007 ◽  
Vol 464 (1-2) ◽  
pp. 261-268 ◽  
Author(s):  
Jung G. Lee ◽  
Kee-Sun Sohn ◽  
Sunghak Lee ◽  
Nack J. Kim ◽  
Choongnyun P. Kim
Keyword(s):  
Fracture Toughness ◽  
Amorphous Alloys ◽  
Bulk Amorphous Alloys

INVAR M93

Alloy Digest ◽  
2008 ◽  
Vol 57 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Low Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Low Temperatures ◽  
Bend Strength ◽  
Temperature Performance ◽  
Ni Content ◽  
Precision Alloys ◽  
Ni Alloy

Abstract Invar is an Fe-Ni alloy with 36% Ni content that exhibits the lowest expansion of known metals from very low temperatures up to approximately 230 deg C (445 deg F). Invar M93 is a cryogenic Invar with improved weldability. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear and bend strength as well as fracture toughness and fatigue. It also includes information on low temperature performance as well as forming and joining. Filing Code: FE-143. Producer or source: Metalimphy Precision Alloys.

NITRALLOY 125

Alloy Digest ◽  
1957 ◽  
Vol 6 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Alloy Steel ◽  
Low Temperatures ◽  
Heat Treating ◽  
Ammonia Gas ◽  
Steel Mills ◽  
Special Alloy

Abstract NITRALLOY 125 (0.20-0.30% C) is a special alloy steel which can be nitrided, that is, surface hardened, without final quenching, by the action of ammonia gas at relatively low temperatures. Nitralloy 125 is also known as Nitralloy H. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-61. Producer or source: Alloy steel mills and foundries.

NITRALLOY N

Alloy Digest ◽  
1956 ◽  
Vol 5 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Alloy Steel ◽  
Low Temperatures ◽  
Heat Treating ◽  
Appreciable Amount ◽  
Dispersion Hardening ◽  
Ammonia Gas ◽  
Steel Mills ◽  
Special Alloy

Abstract NITRALLOY N is a special alloy steel which can be nitrided, that is, surface hardened, without final quenching, by the action of ammonia gas at relatively low temperatures. The presence of an appreciable amount of nickel in Nitralloy N both strengthens and toughens the case and develops dispersion hardening in rhe core during nitriding. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-39. Producer or source: Alloy steel mills and foundries.

HISTAR 355

Alloy Digest ◽  
2015 ◽  
Vol 64 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
Shear Strength ◽  
Yield Strength ◽  
Physical Properties ◽  
Structural Steel ◽  
Tensile Properties ◽  
Low Temperatures ◽  
High Yield ◽  
High Yield Strength

Abstract Histar 355 is a structural steel combining high yield strength (355 MPa minimum) with excellent toughness at low temperatures and outstanding weldability. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and shear strength as well as fracture toughness. It also includes information on forming, machining, and joining. Filing Code: SA-731. Producer or source: ArcelorMittal and ArcelorMittal Luxembourg.

ALLOY STEEL 3.5Ni-1.8Cr-0.4Mo-0.1V

Alloy Digest ◽  
1984 ◽  
Vol 33 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Alloy Steel ◽  
Brittle Failure ◽  
Water Immersion ◽  
Heat Treating ◽  
Water Spray ◽  
Heavy Duty ◽  
High Hardenability ◽  
Steel Mills

Abstract Alloy Steel 3.5Ni-1.8Cr-0.4Mo-0.1V is highly suitable for massive components, usually more than four inches thick. It has high hardenability which in a water-spray or water-immersion quench contributes to the formation of sizeable amounts of martensite along with some bainite, and possibly a little ferrite. On tempering, the martensite adds to toughness and lowers the temperature of transition from tough to brittle failure. This steel is suitable for intermediate-duty and heavy-duty generator and turbine rotors, large axles and shafts, large gears and ship forgings. 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 forming, heat treating, and machining. Filing Code: SA-404. Producer or source: Alloy steel mills and foundries.

TLS A6

Alloy Digest ◽  
2006 ◽  
Vol 55 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Physical Properties ◽  
Tool Steel ◽  
Low Temperatures ◽  
Heat Treating ◽  
Tool Steels

Abstract TLS A6 is a medium-alloy air-hardening tool steel that is known for its through hardening at the low temperatures typically used with oil-hardening tool steels. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on wear resistance as well as heat treating and machining. Filing Code: TS-638. Producer or source: Timken Latrobe Steel.

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