Experimental Investigation of Cold-Formed High-Strength Stainless Steel Tubular Members Subjected to Combined Bending and Web Crippling

Stainless steels have widespread applications due to their good corrosion resistance, but for certain types of large naval constructions, other requirements are imposed such as high strength and toughness , and modified magnetic characteristics.The magnetic characteristics of a 302 type metastable austenitic stainless steel has been assessed after various cold rolling treatments designed to increase strength by strain inducement of martensite. A grade 817M40 low alloy medium carbon steel was used as a reference material.The metastable austenitic stainless steel after solution treatment possesses a fully austenitic microstructure. However its tensile strength , in the solution treated condition , is low.Cold rolling results in the strain induced transformation to α’- martensite in austenitic matrix and enhances the tensile strength. However , α’-martensite is ferromagnetic , and its introduction to an otherwise fully paramagnetic matrix alters the magnetic response of the material. An example of the mixed martensitic-retained austenitic microstructure obtained after the cold rolling experiment is provided in the SEM micrograph of Figure 1.

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Experimental Investigation of Springback in Forming of High Strength Steel Using Split-Ring Test

International Review of Mechanical Engineering (IREME) ◽

10.15866/ireme.v12i3.13038 ◽

2018 ◽

Vol 12 (3) ◽

pp. 207

Author(s):

Shanmugasundaram Sivarajan ◽

Raghupathy Padmanabhan

Keyword(s):

Experimental Investigation ◽

High Strength Steel ◽

High Strength ◽

Ring Test ◽

Split Ring

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METGLAS MBF-30/30A

Alloy Digest ◽

10.31399/asm.ad.ni0273 ◽

1981 ◽

Vol 30 (12) ◽

Keyword(s):

Stainless Steel ◽

Metallic Glass ◽

Physical Properties ◽

Flow Characteristics ◽

High Strength ◽

Thin Foil ◽

Heat Treating

Abstract METGLAS MBF-30A is a brazing foil in ductile, flexible metallic-glass form (a similar grade, MBF-30, is identical except that it has larger dimensional tolerances). This foil provides an alloy with high strength at both elevated and room temperatures. It can be used to join highly stressed stainless steel and heat-resisting alloy components. The excellent flow characteristics of this alloy recommend it for assemblies with good fit-up and tight-tolerance joints. It works well on thin-foil, honeycomb designs and on fairly heavy components. This datasheet provides information on composition, physical properties, and microstructure. It also includes information on heat treating. Filing Code: Ni-273. Producer or source: Allied Corporation.

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AISI No. 633

Alloy Digest ◽

10.31399/asm.ad.ss0389 ◽

1981 ◽

Vol 30 (7) ◽

Keyword(s):

Heat Treatment ◽

Stainless Steel ◽

Stainless Steels ◽

High Strength ◽

Heat Treating ◽

Corrosion Resistant ◽

Martensitic Stainless Steels ◽

Steel Mills ◽

Temperature Performance ◽

Structural Applications

Abstract AISI No. 633 is a chromium-nickel-molybdenum stainless steel whose properties can be changed by heat treatment. It bridges the gap between the austenitic and martensitic stainless steels; that is, it has some of the properties of each. Its uses include high-strength structural applications, corrosion-resistant springs and knife blades. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-389. Producer or source: Stainless steel mills.

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