A Magnetic Nondestructive Evaluation Method to Simultaneously Determine Chemical Composition and Heat Treatment Characteristics of Plain Carbon Steels: A Statistical Modeling Approach

Abstract Böhler (or Boehler) W403 VMR is a tool steel with outstanding properties, based not only on a modified chemical composition, but on the selection of highly clean raw materials for melting, remelting under vacuum (VMF), optimized diffusion annealing, and a special heat treatment. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on forming and heat treating. Filing Code: TS-721. Producer or source: Böhler Edelstahl GmbH.

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Comparison of british and overseas standards for steel. Chemical composition of wrought carbon steels: British standard (S.A.E and AISI) and German (DIN and Werkstoff)

10.3403/30308279u ◽

2015 ◽

Keyword(s):

Chemical Composition ◽

Carbon Steels ◽

British Standard

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A statistical modeling approach to building an expert credit risk rating system

The Journal of Credit Risk ◽

10.21314/jcr.2010.107 ◽

2010 ◽

Vol 6 (2) ◽

pp. 81-94

Author(s):

Rasmus Waagepetersen

Keyword(s):

Credit Risk ◽

Statistical Modeling ◽

Rating System ◽

Risk Rating ◽

Modeling Approach

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Study on Mean Stress Effects for Design Fatigue Curves

Volume 1A: Codes and Standards ◽

10.1115/pvp2016-63796 ◽

2016 ◽

Author(s):

Seiji Asada ◽

Takeshi Ogawa ◽

Makoto Higuchi ◽

Hiroshi Kanasaki ◽

Yasukazu Takada

Keyword(s):

Evaluation Method ◽

Austenitic Stainless Steels ◽

Fatigue Curve ◽

Carbon Steels ◽

Low Alloy Steels ◽

Mean Stress ◽

Research Committee ◽

Stress Effects ◽

Alloy Steels ◽

Design Factors

In order to develop new design fatigue curves for austenitic stainless steels, carbon steels and low alloy steels and a new design fatigue evaluation method that are rational and have a clear design basis, the Design Fatigue Curve (DFC) subcommittee was established in the Atomic Energy Research Committee in the Japan Welding Engineering Society. Mean stress effects for design fatigue curves are to be considered in the development of design fatigue curves. The Modified Goodman approach for mean stress effects is used in the design fatigue curves of the ASME B&PV Code. Tentative design fatigue curves were developed and studies on the effect of mean stress and design factors are on-going. Development of design fatigue curves, effect of mean stress and design factors is needed to establish a new fatigue design evaluation method. The DFC subcommittee has studied correction approaches for mean stress effects and the approaches of modified Goodman, Gerber, Peterson and Smith-Watson-Topper were compared using test data in literature. An appropriate approach for mean stress effects are discussed in this paper.

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