Microstructure and Hardness of Cold Forged 42CrMo4 Steel Hollow Component with the Outer Flange

The Effect of Deep Cryogenic Treatment on Microstructure, Hardness and Wear Behavior of INDRA 5 Cold Work Tool Steel

the evaluation of language related engagment and task related engagment with the purpose of investigating the effect of metatalk and task typology

abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...

Investigation of Grain Flow Microstructure in Forged Nitronic 50 Stainless Steel

Samples were sectioned with observation surface parallel to the normal of the short transverse direction (ST) that were removed from Block B as shown in Figures 1 and 2. A sample was polished and then etched with Agua Regia. The sample was then analyzed in a Leica MEF4M metallograph to observe microstructure and then analyzed in a Zeiss 1540 XB Field Emission Gun Scanning Electron Microscope (F...

Effect of Composition and MnS Addition on Microstructure and Mechanical Properties of Powder Forged Copper Steel Parts

In this work, the effects of carbon content and manganese sulfide addition on the microstructure and mechanical properties of copper steel parts have been studied. Steel powder mixture containing 2%Cu and different graphite contents with and without MnS additions were compacted, sintered and forged to almost full density. Forged samples, with near theoretical densities, were tested for tensile,...

Experimental Studies on the Microstructure and Hardness of Laser Transformation Hardening of Low Alloy Steel

An experimental investigation with Nd:YAG laser system was carried out to study the effects of laser hardening process parameters on the microstructure and hardness during laser hardening of EN25 steel. The laser beam is allowed to scan on the surface of the work piece by varying the laser beam power (750–1250 W) and travel speed (500–1000 mm/min) of the work table. The microstructural features...