Development of Advanced and Free-Machining Titanium Alloys by Micrometer-Size Particle Distribution

Carsten Siemers; Judith Laukart; Badya Zahra; Joachim Rösler; Zdenek Spotz; Karel Saksl

doi:10.4028/www.scientific.net/MSF.690.262

Paper Titles

Properties of AZ31 Magnesium Alloys Subjected to Different Extrusion Processes
p.246

Studies and Researches Concerning the Presence of Iron in Secondary Aluminium Meltings and Valorification of Some Aluminium Waste
p.250

Fatigue Crack Growth in Ultrafine Grained Aluminium Alloy
p.254

Development of Light Weight AA2024 Alpha Composites
p.258

Development of Advanced and Free-Machining Titanium Alloys by Micrometer-Size Particle Distribution
p.262

Characteristics of Titanium Interface Structures for Advanced FRP-Aluminium Compounds
p.266

Compression Creep at 240°C of Extruded Magnesium Alloys Containing Gadolinium
p.270

The Effect of Ni on the High-Temperature Strength of Al-Si Cast Alloys
p.274

Modeling Bolt Load Retention of Ca Modified AS41 Using Compliance-Creep Method
p.278

HomeMaterials Science ForumMaterials Science Forum Vol. 690Development of Advanced and Free-Machining...

Development of Advanced and Free-Machining Titanium Alloys by Micrometer-Size Particle Distribution

Abstract:

The chip formation process of four different titanium alloys has been studied in several cutting experiments. Alloys containing more than 50% of a-phase at room temperature and aged metastable b-alloys form segmented chips independent of the cutting conditions. Solution treated metastable b-alloys show a cutting parameter dependent change from continuous to segmented chip formation. Lanthanum has been added to all four alloys. The microstructure of these alloys consists of a titanium matrix and micrometer-size particles. The presence of grain boundary particles leads to enhanced grain stability at elevated temperatures. In addition, short chips are observed during metal cutting only in case pure metallic rare-earth metal particles are present.

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Periodical:

Materials Science Forum (Volume 690)

Pages:

262-265

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.690.262

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Online since:

June 2011

Authors:

Carsten Siemers, Judith Laukart, Badya Zahra, Joachim Rösler, Zdenek Spotz, Karel Saksl

Keywords:

Free Machining Alloy, Grain Size Stabilization, Rare Earth Metals, Titanium Alloy

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