Paper Title:
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.

  Info
Periodical
Chapter
Chapter 5: Microstructure and Properties
Edited by
Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer
Pages
262-265
DOI
10.4028/www.scientific.net/MSF.690.262
Citation
C. Siemers, J. Laukart, B. Zahra, J. Rösler, Z. Spotz, K. Saksl, "Development of Advanced and Free-Machining Titanium Alloys by Micrometer-Size Particle Distribution", Materials Science Forum, Vol. 690, pp. 262-265, 2011
Online since
June 2011
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