A Study of the Effect of Subzero Treatments on the Retained Austenite and Physical Properties of Hardened and Tempered Tool Steels PDF Download
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Author: Alexander H. d'Arcambal
Publisher:
ISBN:
Category :
Languages : en
Pages : 140
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Author: Alexander H. d'Arcambal
Publisher:
ISBN:
Category :
Languages : en
Pages : 140
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Author:
Publisher: UM Libraries
ISBN:
Category : Education, Higher
Languages : en
Pages : 786
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Author: University of Michigan
Publisher:
ISBN:
Category :
Languages : en
Pages : 664
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Announcements for the following year included in some vols.
Author: University of Michigan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Paul Stratton
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 13
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The consensus view is that a high carbon case gives gears the best overall properties, provided that there is no carbide network and the retained austenite has been reduced below 20 % by sub-zero treatment. This view is effectively enshrined in the SAE AMS 2759/7A standard. The sub-zero treatment usually takes place immediately after the quench to avoid austenite stabilization. However, for some parts with complex geometries that might crack during the treatment, a short low temperature temper is carried out first. Little is known on how this temper affects the subsequent sub-zero treatment. Three carburising steels used extensively in the aerospace industry were carburised to produce high retained austenite levels in the case using two different but typical carburising cycles. The retained austenite was determined by X-ray diffraction before and after sub-zero treatment was carried out in accordance with the standard and compared with that obtained when an intermediate temper was used. This study shows that for three typical carburising steels carburised using typical cycles, the efficacy of the sub-zero treatment is probably slightly reduced after the temper but not enough to be industrially significant.
Author: Iron and Steel Institute
Publisher:
ISBN:
Category : Iron industry and trade
Languages : en
Pages : 1112
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Includes the institute's Proceedings.
Author: University of Michigan
Publisher:
ISBN:
Category : Detroit (Mich.)
Languages : en
Pages : 776
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Announcements for the following year included in some vols.
Author: Peter Jurči
Publisher: MDPI
ISBN: 303650060X
Category : Science
Languages : en
Pages : 130
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Book Description
Steels and their heat treatment are still very important in modern industry because most industrial components are made from these materials. The proper choice of steel grades along with their suitable processing makes it possible to reduce the weight of the components, which is closely related to energy and fuel savings. This has decisive importance in branches such as the automotive, transport, consumer industries. A great number of novel heat- and surface-treatment techniques have been developed over the past three decades. These techniques involve, for example, vacuum treatment, sub-zero treatment, laser/electron beam surface hardening and alloying, low-pressure carburizing and nitriding, and physical vapour deposition. This Special Issue contains a collection of original research articles on not only advanced heat-treatment techniques—carburizing and sub-zero treatments—but also on the microstructure–property relationships in different ferrous alloys.
Author: Mnaouar Chouchane
Publisher: Springer Nature
ISBN: 3031650077
Category :
Languages : en
Pages : 533
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Author: Howard Scott
Publisher:
ISBN:
Category : Steel
Languages : en
Pages : 24
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