scholarly journals Development of Molybdenum Hybrid-Alloyed Steel Powder for High Fatigue Strength Sintered Parts

2010 ◽  
Vol 57 (5) ◽  
pp. 341-347
Author(s):  
Shigeru Unami ◽  
Yukiko Ozaki ◽  
Tsutomu Ushirozako ◽  
Hitoshi Tanino
Keyword(s):  
Fatigue Strength ◽  
Steel Powder ◽  
Alloyed Steel ◽  
High Fatigue

Rolling Contact Fatigue Property of Sintered and Carburized Compacts Made of Molybdenum Hybrid-Alloyed Steel Powder

2007 ◽  
Vol 534-536 ◽  
pp. 713-716 ◽  
Author(s):  
Shigeru Unami ◽  
Yukiko Ozaki ◽  
Satoshi Uenosono
Keyword(s):  
Fatigue Strength ◽  
Pore Structure ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Fatigue Property ◽  
Steel Powder ◽  
Rolling Contact ◽  
Alloyed Steel ◽  
Sintered Compact ◽  
Contact Fatigue Strength

A new molybdenum hybrid-alloyed steel powder has been developed. The powder is based on a molybdenum prealloyed steel powder to which molybdenum powder particles have been diffusion bonded. The sintered compact made of the developed powder has a finer pore structure than that of the conventional molybdenum prealloyed steel powder, because the ferritic iron phase (α-phase) with a high diffusion coefficient is formed in the sintering necks where molybdenum is concentrated resulting in enhanced sintering. The rolling contact fatigue strength of the sintered and carburized compacts made of this powder improved by a factor of 3.6 compared with that of the conventional molybdenum prealloyed steel powder. The improvement in the rolling contact fatigue strength should result from the fine pore structure without coarse pores acting as stress concentration points.

LUCEFIN GROUP 20NiCrMo2-2(1.6523), 20NiCrMoS2-2 (1.6526)

Alloy Digest ◽  
2020 ◽  
Vol 69 (12) ◽  
Keyword(s):  
Wear Resistance ◽  
Fatigue Strength ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
Medium Size ◽  
Case Hardening ◽  
Low Carbon ◽  
High Fatigue

Abstract Lucefin Group 20NiCrMo2-2 and 20NiCrMoS2-2 are low-carbon, Ni-Cr-Mo, alloy case-hardening steels that are used in the carburized or carbonitrided, and subsequently quench hardened and tempered, condition. These steels are, in general, used for medium-size case-hardened parts requiring high fatigue strength and wear resistance. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and joining. Filing Code: SA-866. Producer or source: Lucefin S.p.A..

SANBAR 20

Alloy Digest ◽  
1999 ◽  
Vol 48 (8) ◽  
Keyword(s):  
Wear Resistance ◽  
Fatigue Strength ◽  
Tensile Properties ◽  
High Strength ◽  
Heat Treating ◽  
Steel Company ◽  
High Fatigue ◽  
Molybdenum Steel ◽  
Rolled Condition

Abstract SANBAR 20 is a high-strength chromium-molybdenum steel with high-fatigue strength and excellent wear resistance in the as-rolled condition. The primary application is use as integral drill rods. This datasheet provides information on composition, hardness, and tensile properties. It also includes information on forming, heat treating, and machining. Filing Code: SA-501. Producer or source: Sandvik Steel Company.

scholarly journals Errata: Properties of Rolled and Carburized Sintered Gear Made of Ni–Mo Pre-alloyed Steel Powder

2015 ◽  
Vol 62 (4) ◽  
pp. 217
Author(s):  
Satoshi NISHIDA ◽  
Masaki YOSHIDA ◽  
Hironori SUZUKI ◽  
Teruie TAKEMASU ◽  
Takao KOIDE
Keyword(s):  
Steel Powder ◽  
Alloyed Steel

Surface Cross-linked UHMWPE: A Low Wear Material with Very High Fatigue Strength

2010 ◽  
Vol 25 (3) ◽  
pp. e72
Author(s):  
Ebru Oral ◽  
Bassem Ghali ◽  
Shannon Rowell ◽  
Brad Micheli ◽  
Orhun Muratoglu
Keyword(s):  
Fatigue Strength ◽  
High Fatigue ◽  
Low Wear ◽  
Very High

Effect of Repeated Quenching on the Rotating Bending Strength of SAE52100 Bearing Steel

2012 ◽  
Vol 457-458 ◽  
pp. 1025-1031 ◽  
Author(s):  
Koshiro Mizobe ◽  
Edson Costa Santos ◽  
Takashi Honda ◽  
Hitonobu Koike ◽  
Katsuyuki Kida ◽  
...  
Keyword(s):  
Fatigue Strength ◽  
Bending Strength ◽  
High Strength ◽  
Bearing Steel ◽  
Rolling Contact ◽  
High Wear Resistance ◽  
High Carbon ◽  
Austenite Grain ◽  
High Fatigue ◽  
Rotating Bending

Martensitic high carbon high strength SAE 52100 bearing steel is one of the main alloys used for rolling contact applications where high wear resistance are required. Due to its high fatigue strength, SAE 52100 is recently being used not only for the production of bearings but also shafts. Refining of prior austenite grain through repeated quenching is a procedure that can be used to enhance the material’s strength. In this work, the microstructure of repeatedly quenched SAE 52100 steel and its fatigue strength under rotating bending were investigated. It was found that repeated furnace heating and quenching effectively refined the martensitic structure and increased the retained austenite content. Repeated quenching was found to improve the fatigue strength of SAE 52100.

New Powder Metallurgical Approach to Achieve High Fatigue Strength in Ti-6Al-4V Alloy

2016 ◽  
Vol 47 (5) ◽  
pp. 2335-2345 ◽  
Author(s):  
Fei Cao ◽  
K. S. Ravi Chandran ◽  
Pankaj Kumar ◽  
Pei Sun ◽  
Z. Zak Fang ◽  
...  
Keyword(s):  
Fatigue Strength ◽  
High Fatigue
Sign in / Sign up

Export Citation Format

Share Document