scholarly journals Increasing the fracture toughness of a maraging steel type alloy

1976 ◽  
Vol 7 (3) ◽  
pp. 465-468 ◽  
Author(s):  
B. Francis
Keyword(s):  
Fracture Toughness ◽  
Maraging Steel ◽  
Type Alloy ◽  
Steel Type

scholarly journals Automatic Evaluation of the Mechanical Properties of Steels Maraging using Digital Image Processing Techniques

2020 ◽  
Author(s):  
Angélica Alves Viana ◽  
Savio Lopes Rabelo ◽  
José Daniel de Alencar Santos ◽  
Venceslau Xavier de Lima Filho ◽  
Douglas De Araújo Rodrigues ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Maraging Steel ◽  
Raw Material ◽  
High Fracture Toughness ◽  
Mechanical Resistance ◽  
High Fracture ◽  
Traditional System ◽  
Transformation Methods ◽  
Processing Techniques

Some strategic sectors of the economy require that the raw material of their machines and equipment have mechanical properties that satisfy their use. Maraging steel is a material of great concern since it is necessary to have a high mechanical resistance associated with high fracture toughness. The traditional tests to determine the fracture toughness of this material before use in applications are the Charpy and KIC tests. However, this process is characterized by being exhaustive and requiring specialized and trained professionals. Thus, to reverse this situation, this work proposes a new approach to determine the mechanical properties of maraging steel. For this, initially, the method removes any artifacts present in the image resulting from the mode of acquisition. In sequence, this works tested the method Extended Minimum Transformation (EMT) and mathematical morphology to find these markers of the regions of the dimples. Then, the Adaptive Thresholding, Optimal Global Thresholdusing the Otsu Method and Watershed transformation methods were used to segment the dimples. In the end, the diameter of the dimples and the toughness of the material were calculated. Tests are carried out and compared with the result obtained by specialists using the traditional system to evaluate the proposed approach. The results obtained were satisfactory for the application because the proposed approach presented speed and precision to the conventional methods.

scholarly journals Grain Size Dependence of Fracture Toughness in an Ultrahigh Strength Maraging Steel

1983 ◽  
Vol 69 (1) ◽  
pp. 145-152 ◽  
Author(s):  
Yoshikuni KAWABE ◽  
Seiichi MUNEKI ◽  
Junji TAKAHASHI
Keyword(s):  
Fracture Toughness ◽  
Grain Size ◽  
Maraging Steel ◽  
Size Dependence ◽  
Ultrahigh Strength

Fracture-Toughness Measurements on 12% Ni Maraging Steel Weldment

1969 ◽  
Vol 3 (1) ◽  
pp. 54-57
Author(s):  
F. R. STONESIFER ◽  
H. L. SMITH
Keyword(s):  
Fracture Toughness ◽  
Maraging Steel ◽  
Steel Weldment

scholarly journals Effect of Nitrogen on the Microstructure and Hardness of High-Carbon High-Speed Steel Type Alloy

2015 ◽  
Vol 79 (4) ◽  
pp. 169-175 ◽  
Author(s):  
Ryutaro Hara ◽  
Masahiro Yamamoto ◽  
Gen Ito ◽  
Kazunori Kamimiyada ◽  
Ichihito Narita ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
High Carbon ◽  
Type Alloy ◽  
Steel Type

STAINLESS STEEL TYPE 303Pb

Alloy Digest ◽  
1960 ◽  
Vol 9 (11) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Austenitic Steel ◽  
Stainless Steels ◽  
Heat Treating ◽  
Steel Type ◽  
Temperature Performance

Abstract Stainless Steel Type 303Pb is a lead bearing, free-cutting, austenitic steel. It contains a nominal 18% Chromium, 8% Nickel and 0.3% free machining addition which is divided between lead and sulfur. This steel was designed for superior machinability to provide its users with increased production. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-110. Producer or source: Joslyn Stainless Steels.

BÖHLER WKV

Alloy Digest ◽  
1955 ◽  
Vol 4 (12) ◽  
Keyword(s):  
Thermal Conductivity ◽  
Fracture Toughness ◽  
High Temperature ◽  
High Efficiency ◽  
Heat Treating ◽  
Type Alloy ◽  
Hot Strength ◽  
Temperature Performance ◽  
Heat Checking ◽  
Resistance To Heat

Abstract Böhler (or Boehler) WKV is a high efficiency hot-work steel having high resistance to heat checking, high tempering stability, adequate hot strength, sufficient toughness at working temperatures and very good thermal conductivity. It approaches ASM IIID or SAE Type S1 or AISI S1 in composition and type alloy. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: TS-41. Producer or source: Böhler Uddeholm N.A..

REPUBLIC RSM-200

Alloy Digest ◽  
1967 ◽  
Vol 16 (5) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Maraging Steel ◽  
High Strength ◽  
Heat Treating ◽  
Steel Corporation

Abstract Republic RSM-200 is a high strength, tough maraging steel recommended for airframe and missile systems. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-209. Producer or source: Republic Steel Corporation.

DURALOY HU

Alloy Digest ◽  
1954 ◽  
Vol 3 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Heat Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Nickel Alloy ◽  
Heat Treating ◽  
Type Alloy ◽  
Temperature Performance

Abstract DURALOY HU is an austenitic, non-magnetic chromium nickel alloy steel having high corrosion and heat resistance. It is of the 39 Ni-19 Cr type alloy, similar to ACI-HU. 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-21. Producer or source: Duraloy Technologies Inc..

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