Mechanical Performance of Austempered Ductile Iron PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Mechanical Performance of Austempered Ductile Iron PDF full book. Access full book title Mechanical Performance of Austempered Ductile Iron by . Download full books in PDF and EPUB format.
Author: Publisher: ISBN: Category : Languages : en Pages : 37
Book Description
Plates of Austempered Ductile Iron (ADI) containing, in mass pct, 3.7 C. 2.7 Si, 0.97 Ni and 0.27 Mn were heat treated to ASTM 897 Grade 1 and 3 tensile properties and subjected to tensile testing at temperatures between -80 and 120 deg C. Room temperature yield and ultimate tensile strengths met specifications but values of elongation were lower than expected. The retained austenite contents contributed to lowered yield strengths during low temperature testing and increased ultimate tensile strengths and ductilities during high temperature testing. These changes in properties were related to the effects of temperature on the strain-induced transformation of austenite to martensite. The lower than expected ductility of the ADI specimens was related to microporosity, differences in graphite nodule distributions, differences in strain hardening related to austenite stability, and the ductile-to-brittle fracture transition of the matrix ferrite with decreasing temperature. Ductile iron, Austempering, Mechanical properties, Austenite transformation.
Author: Publisher: ISBN: Category : Languages : en Pages : 37
Book Description
Plates of Austempered Ductile Iron (ADI) containing, in mass pct, 3.7 C. 2.7 Si, 0.97 Ni and 0.27 Mn were heat treated to ASTM 897 Grade 1 and 3 tensile properties and subjected to tensile testing at temperatures between -80 and 120 deg C. Room temperature yield and ultimate tensile strengths met specifications but values of elongation were lower than expected. The retained austenite contents contributed to lowered yield strengths during low temperature testing and increased ultimate tensile strengths and ductilities during high temperature testing. These changes in properties were related to the effects of temperature on the strain-induced transformation of austenite to martensite. The lower than expected ductility of the ADI specimens was related to microporosity, differences in graphite nodule distributions, differences in strain hardening related to austenite stability, and the ductile-to-brittle fracture transition of the matrix ferrite with decreasing temperature. Ductile iron, Austempering, Mechanical properties, Austenite transformation.
Author: Ranjit Kumar Panda Publisher: LAP Lambert Academic Publishing ISBN: 9783659697043 Category : Languages : en Pages : 124
Book Description
Even since its discovery in 1948, the use of ductile iron is increasing continuously, this is due to the combination of its various excellent mechanical properties. Excessive amount of research is being carried out to develop even better properties. Austempererd ductile iron is the most recent development in the area of ductile iron or S.G. iron. This is formed by an isothermal heat treatment of the ductile iron. The newly developed austempered ductile iron is now replacing steel in many fields so it has becoming very important to various aspects of this material. In the present work the effect of copper along with the process variables (austempering temperature and austempering time) on the properties (Hardness, Tensile strength and Elongation) and microstructure of ductile iron is studied. With increasing austempering time hardness, tensile strength and elongation are increasing but with increasing austempering temperature hardness and tensile strength are decreasing and elongation increasing. Austempered ductile iron with copper is showing some higher strength, hardness and lower elongation than the austempered ductile iron without copper. In microstructure ferrite is increasing
Author: Dody Prayitno Publisher: ISBN: Category : Iron, Nodular Languages : en Pages : 280
Book Description
Project describes experiments done to study the effects of some variants in the austempering process on mechanical properties, especially fatigue of ADI. The calculation of the stress intensity factor is also looked into.
Author: John Chinella Publisher: ISBN: Category : Languages : en Pages : 58
Book Description
This study describes the resistance to penetration and the damage to austempered ductile iron (ADI) from ballistic impacL The resistance to penetration is determined with an average velocity with a 50% probability for complete penetration, the V-50 ballistic limit. The responses of the ADI material to impact are shown by observations of penetration modes, microstructural changes, and fracture topographies. Mechanical properties and ballistic limits are shown for two variations of the austemper process. ADI targets reveal a capability for multiple impacts without structural failures. Penetration modes include ductile hole growth, radial fracture, petaling, and scabbing. V-50 velocities of ADI with lower values of hardness and strength are equal or greater than the V-50 velocities of ADI with higher values of hardness and strength. Graphite spheroids of this ductile cast iron appear to affect plastic deformation and penetration modes by localizing stresses, microstructural changes, and fracture.
Author: 
Author: 
Author: Y. Iio
Author: Al Alagarsamy
Author: Ranjit Kumar Panda
Author: Eduard Dorazil
Author: Kathy L. Hayrynen
Author: Dody Prayitno
Author: John Chinella
Author: Bulent Corlu
Author: Maurice Grech