Results 111 to 120 of about 200 (149)
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2005
Abstract Gas (atmosphere) carburizing is the de facto standard by which all other surface hardening techniques are measured and is the emphasis of this chapter. Initially, the chapter describes the process and equipment for gas carburizing. This is followed by sections discussing the processes involved in quenching, hardening, tempering,
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Abstract Gas (atmosphere) carburizing is the de facto standard by which all other surface hardening techniques are measured and is the emphasis of this chapter. Initially, the chapter describes the process and equipment for gas carburizing. This is followed by sections discussing the processes involved in quenching, hardening, tempering,
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Carburization behaviour of high temperature alloys in carburizing environment
Journal of Nuclear Materials, 1989Abstract In studying the carburization behaviour of high temperature alloys, tests in a heavily carburizing environment were performed several potential candidate alloys for use in the HTGR system. The carburization tests were carried out in Ar containing 10% CH 4 gas at 800, 850, 900 and 950 °C for up to 100 h.
Masami Shindo, Hajime Nakajima
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1999
Carburizing: Microstructures and Properties explains how to recognize and address problems associated with case carburizing treatments for steels. It examines the nature of internal oxidation, decarburization, free carbides, and retained austenite and their effect on fatigue and fracture strength, wear resistance, impact toughness, hardness, and other ...
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Carburizing: Microstructures and Properties explains how to recognize and address problems associated with case carburizing treatments for steels. It examines the nature of internal oxidation, decarburization, free carbides, and retained austenite and their effect on fatigue and fracture strength, wear resistance, impact toughness, hardness, and other ...
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Aircraft Engineering and Aerospace Technology, 1946
SEVERAL methods of carburizing are unisersally employed in modern engineering practice. For instance, in the pack method usually referred to as “box carburizing” the work is heated in contact with solid compound which, when at temperature, forms carbon monoxide and at the surface of the steel decomposition takes place, nascent carbon going into ...
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SEVERAL methods of carburizing are unisersally employed in modern engineering practice. For instance, in the pack method usually referred to as “box carburizing” the work is heated in contact with solid compound which, when at temperature, forms carbon monoxide and at the surface of the steel decomposition takes place, nascent carbon going into ...
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2013
Abstract This article describes the thermodynamics and kinetics of gas carburizing reactions, and details the mass transfer mechanism during gas carburizing. It discusses the various considerations involved in carburizing process planning, and reviews successful operation of the gas carburizing process based on the control of three ...
Olga K. Rowan, Gary D. Keil
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Abstract This article describes the thermodynamics and kinetics of gas carburizing reactions, and details the mass transfer mechanism during gas carburizing. It discusses the various considerations involved in carburizing process planning, and reviews successful operation of the gas carburizing process based on the control of three ...
Olga K. Rowan, Gary D. Keil
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International Journal of Solar Energy, 1987
Abstract L'analyse du marche du petrole montre qu'il est fragile et oriente a la hausse au fur et a mesure du resserement de l'offre autour de quelques pays disposant des principales reserves. Les surproductions agricoles actuelles ne sont pas conjoncturelles. Leur transformation en gthanol est techniquement maltrisee dans des usines performantes.
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Abstract L'analyse du marche du petrole montre qu'il est fragile et oriente a la hausse au fur et a mesure du resserement de l'offre autour de quelques pays disposant des principales reserves. Les surproductions agricoles actuelles ne sont pas conjoncturelles. Leur transformation en gthanol est techniquement maltrisee dans des usines performantes.
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Carburizing and Heat Treatment of Carburizing Grade Steel Parts
2021<div class="section abstract"> <div class="htmlview paragraph">This specification, in conjunction with the general requirements for steel heat treatment covered in AMS2759, establishes the requirements and procedures for three classes of gas, vacuum, liquid, and low pressure (LPC) carburizing and related heat treatment of parts fabricated
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2013
Abstract Pack carburizing is a process in which carbon monoxide derived from a solid compound decomposes at the metal surface into nascent carbon and carbon dioxide. In addition to discussing the pros and cons of pack carburizing, this article provides information on the carburizing medium, compounds, furnaces, and containers used in ...
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Abstract Pack carburizing is a process in which carbon monoxide derived from a solid compound decomposes at the metal surface into nascent carbon and carbon dioxide. In addition to discussing the pros and cons of pack carburizing, this article provides information on the carburizing medium, compounds, furnaces, and containers used in ...
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Characteristic features of carburizing of steel during vacuum carburizing
Metal Science and Heat Treatment, 19791. The quantitative relationship obtained between the carbon concentration in the case and the basic parameters of the vacuum carburizing process makes it possible to determine the effective case depth for any ratio of saturation and diffusion times. 2.
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Abstract This chapter focuses on gas carburizing. It includes a history of carburizing and explains the objectives of the carburizing process. The chapter discusses atmospheres, sources of carbon, reactions in the gas carburizing process, and effects of process variables such as temperature and time.
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