Nova Publishers
My Account Nova Publishers Shopping Cart
HomeBooksSeriesJournalsReference CollectionseBooksInformationSalesImprintsFor Authors
            
  Top » Catalog » Books » Materials Science » Shape Memory Alloys: Manufacture, Properties and Applications Chapters » My Account  |  Cart Contents  |  Checkout   
Quick Find
  
Use keywords to find the product you are looking for.
Advanced Search
What's New? more
Recycling and Reuse of Materials
$85.50
Shopping Cart more
0 items
Information
Shipping & Returns
Privacy Notice
Conditions of Use
Contact Us
Notifications more
NotificationsNotify me of updates to Formation of transitory bainite as a precursor of α-phase during tempering of martensitic, pp. 267-285
Tell A Friend
 
Tell someone you know about this product.
Formation of transitory bainite as a precursor of α-phase during tempering of martensitic, pp. 267-285 $100.00
Authors:  Leandru-Gheorghe Bujoreanu
Abstract:
The paper assumes that, in the case of a martensitic Cu-Zn-Al shape memory alloy
subjected to heating above 770 K, the endothermic peaks revealed by differential scanning
calorimetry (DSC) and differential thermal analysis (DTA) and located around 630 K
would correspond to the transitory formation of α1 bainite. This endothermic phenomenon
has been regarded as transitory since heating proceeding causes exothermic precipitation
of equilibrium α-phase which is copper-rich and therefore its formation augments both Zn
and Al amounts in β2 austenitic matrix.
Considering that the formation of tempering bainite has been completed at 670 K,
specimens which were water-quenched from this temperature were analyzed by optical
and transmission electron microscopy (OM and TEM, respectively) and bainite formation
was ascertained by its plate-like morphology with irregularly distributed internal striations
having microtwin-appearance and by its selected-area diffraction (SAD) pattern with
orthorhombic unit cell having 9R atomic ordering.
In order to reveal the irreversible character of tempering-martensite formation,
induced by its diffusion controlled growth, specimens water-quenched from 770 K were
subjected to DSC-scans during heating. In this case no martensite reversion to austenite
was detected and the accumulation of irreversibly formed α-phase caused a gradual change
of chemical composition of β2 matrix accompanied by a diminution in the intensity of its
order-disorder transition. 


Available Options:
Version:
This Item Is Currently Unavailable.
Special Focus Titles
01.Essays on the Philosophical Nexus between Religion and Politics. Volume 2
02.Glaciology for Glacial Geologists
03.Tropical Fruits: From Cultivation to Consumption and Health Benefits, Fruits from the Amazon
04.The Copper Garden: New Zealand Novels
05.Informed Parents, Healthy Kids: Information You Need to Know to Find the Right Mental Health Practitioner
06.An Echo of Silence: A Comprehensive Research Study on Early Child Marriage (ECM) in Iran
07.Panic Disorder: Assessment, Management and Research Insights
08.Multiple Sclerosis in Children and Adolescents
09.Parkinsonís Disease: Awareness among Young Adults
10.Cancer and Exercise
11.Psychobiological, Clinical, and Educational Aspects of Giftedness
12.Why 40%-80% of Chronic Pain Patients Are Misdiagnosed and How to Correct That

Nova Science Publishers
© Copyright 2004 - 2018

Formation of transitory bainite as a precursor of α-phase during tempering of martensitic, pp. 267-285