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Quenching - German-Jordanian University Industrial...

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German-Jordanian University Industrial Engineering Department Material Science Lab (IE2210) Fall 2007 Dr. Safwan A. Altarazi, Eng. Nidal Ha’boush, Eng. Abeer Daood Student Name: Nayef Fawaier 2008103042 Experiment Title: Out of Mark Title 10 Abstract 15 Introduction 15 Method 30 Results 20 Discussion and Conclusion 10 Report Organization and Neatness 100 Total Mark
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Material Science Lab. IE2210 Abstract Introduction Heat treatment is the technique that causes the hardening of the material, in our case steel. Heat treatment is included in many processes including: Hardening process -This process is intended to produce through hardened structure by quench-hardening. This is the most common heat treatment practice for mould making industry. Hardening increases wear resistance and strength of material and provides toughness after Tempering. However, hardening often results in turning the structure of the work brittle. Besides, internal stress increases tremendously while ductility of the metal decrease. Softening processes - These processes are intended primarily to soften the material, such as Annealing; also those intended primarily to remove stresses either inherent or consequent upon prior operations, but generally resulting in a softer structure. The latter processes include stress relieving and process annealing. Toughening process- This process is intended to produce a structure possesses good strength and ductility in steels by means of Normalizing. Improved the machine ability, grain structure refinement, homogenization and modification of residual stresses are among the reasons for which normalizing is done.
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