Effect of Solution Annealing on Alpha Prime Martensitic Microstructure of Cold Rolled AISI316L Stainless Steel

Kim, Yong Soo

doi:10.31031/amms.2019.04.000580

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…The authors showed that the formation of strain-induced martensite clearly resulted in significant steel strengthening. Kim et al [ 16 ] studied the effect of solution annealing on the α’-martensitic microstructure of cold rolled (10% and 20%) AISI 316 L steel. The authors established that solution annealing and α’-martensitic microstructure played an important role in stress corrosion cracking resistance of this steel.…”

Section: Introductionmentioning

confidence: 99%

Effect of Diamond Burnishing on Fatigue Behaviour of AISI 304 Chromium-Nickel Austenitic Stainless Steel

et al. 2022

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The disadvantages of widely used austenitic stainless steels are their low hardness and relatively low fatigue strength. Conventional chemical-thermal surface treatments are unsuitable for these steels since they create conditions for inter-granular corrosion. An effective alternative is a low-temperature surface treatment, creating an S-phase within the surface layer, but it has a high cost/quality ratio. Austenitic steels can increase their surface micro-hardness and fatigue strength via surface cold working. When the goal is to increase the rotating bending fatigue strength of austenitic chromium-nickel steels, and the requirements for significant wear resistance are not paramount, diamond burnishing (DB) has significant potential to increase the fatigue strength and, based on the cost/quality ratio, can successfully compete with low-temperature chemical-thermal treatments. The main objective of this study is to establish the effect of DB on the rotating fatigue strength of AISI 304 L chromium-nickel austenitic steel. The influence of DB parameters on the surface integrity (SI) characteristics was studied. Optimal DB parameters under minimum roughness and maximum micro-hardness criteria were obtained. Rotating bending fatigue tests of the diamond burnished (in a different manner) and untreated specimens were performed. DB implemented via parameters providing maximum micro-hardness increased fatigue limit by 38% compared to untreated specimens.

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Section: Introductionmentioning

confidence: 99%

Effect of Diamond Burnishing on Fatigue Behaviour of AISI 304 Chromium-Nickel Austenitic Stainless Steel

et al. 2022

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“…Decommissioning is one of the most important steps in the nuclear industry and decommissioning process involves decontamination, decommissioning, waste disposal and environmental treatment, usually lasting 10-20 years [1][2][3][4][5]. Various types of waste generated during the decommissioning of nuclear power plants and the amount of wire waste needs to be considered.…”

Section: Introductionmentioning

confidence: 99%

Study on the Reduction of Radioactive Wastes on the Wire Using Blasting Gun Process

Pak

2022

AMMS

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This study explains how to reduce the volume of radioactive wastes on the wires generated during the decommissioning process of nuclear facilities. The method involves spraying pressure treatment process to separate the aggregates from the wire; the latter of which contain the majority of the radioactive contaminants. The process acted to weaken the chemical bond between the wire and aggregate components on the wire. Optimal treatment conditions were determined to be as follows: pre-treatment for 1sec using round nozzle followed by flat nozzle horizontal to the wire for 1.5sec at room temperature. Such conditions were found to be effective at reducing the volume of the waste but could not remove the contaminants from the aggregates completely. Applying the additional process to remove the contaminants using dry ice, the clearance criteria could be attained for the aggregates separated. Therefore, the radioactive waste could be treated for clearance by the sequential treatment process, thus achieving an approximately 85% volume reduction of the radioactive waste and ultimately lowering the cost of decommissioning and waste disposal.

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“…Decommissioning is one of the most important steps in the nuclear industry and decommissioning process involves decontamination, decommissioning, waste disposal and environmental treatment, usually lasting 10-20 years [1][2][3][4]. Various types of waste generated during the decommissioning of nuclear power plants and the amount of wire waste needs to be considered.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing the Equipment for Reduction of Radioactive Wastes on the Wire Using Blasting Gun Process

Pak¹

2022

AMMS

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This study explains how to manufacture the equipment for removing radioactive wastes on the wires generated during the decommissioning process of nuclear facilities. The method involves spraying pressure treatment process to separate the aggregates from the wire; the latter of which contain the majority of the radioactive contaminants. The process acted to weaken the chemical bond between the wire and aggregate components on the wire. As a result of the decontamination test of the flat nozzle and the round nozzle, the decontamination area of the flat nozzle increased compared to the round nozzle, but the decontamination rate decreased. In the case of a round nozzle, the sprayed dry ice pellets collide with the surface of the wire and decontamination occurs almost simultaneously. On the other hand, in the case of a flat nozzle, it takes about 1 second or more to decontaminate one area. If the electric wire moves before one area is decontaminated, there is a possibility of deterioration of decontamination performance.

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Effect of Solution Annealing on Alpha Prime Martensitic Microstructure of Cold Rolled AISI316L Stainless Steel

Cited by 3 publications

References 12 publications

Effect of Diamond Burnishing on Fatigue Behaviour of AISI 304 Chromium-Nickel Austenitic Stainless Steel

Effect of Diamond Burnishing on Fatigue Behaviour of AISI 304 Chromium-Nickel Austenitic Stainless Steel

Study on the Reduction of Radioactive Wastes on the Wire Using Blasting Gun Process

Manufacturing the Equipment for Reduction of Radioactive Wastes on the Wire Using Blasting Gun Process

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