A study on phase transformation and particle distribution during machining titanium metal matrix composites

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TypeArticle
Proceedings title26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites
Conference26th Annual Technical Conference of the American Society for Composites 2011 and the 2nd Joint US-Canada Conference on Composites, 26 September 2011 through 28 September 2011, Montreal, QC
ISBN9781618391964
Volume3
Pages21832195; # of pages: 13
SubjectChip morphologies; Cutting conditions; Distribution of particles; High elastic modulus; High stiffness; High wear resistance; In-chip; Influence of feed rates; Metal matrix composites; Metallic matrices; Nonmetallic phasis; On chips; Particle accumulation; Particle debonding; Particle distributions; Particle fracture; Phase analysis; Surface integrity; Titanium metal matrix composites; XRD; Debonding; Metallic matrix composites; Morphology; X ray diffraction analysis; Phase transitions
AbstractMetal matrix composites are materials composed of nonmetallic phases distributed in a metallic matrix. They exhibit outstanding combination of preferable properties such as increased strength, low weight, high stiffness, high wear resistance and high elastic modulus. Although the system offers superior properties, the hard and abrasive nature of the reinforcements induces severe issues in the field of machining. Chip morphology and surface integrity analyses are of prime importance to investigate the machinability of MMCs. Influence of elemental analysis of chip in chip morphology and phase analysis on surface integrity is covered in this research. In this study elemental analysis has been conducted to reveal the distribution of particles in the matrix, in the raw material and chips generated under different cutting conditions. The effect of particle accumulation on chip edge serration has been investigated. Also the mechanism of particle fracture and debonding and influence of feed rate on the particle debonding is studied. In order to study the role of thermal effect on the generation of machining residual stress, X-ray diffraction analysis (XRD) is utilized, and the possibility of phase transformation is investigated.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace (AERO-AERO)
Peer reviewedYes
NPARC number21271335
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Record identifier8274ae44-bdc4-4184-b3af-a311be7f4e9d
Record created2014-03-24
Record modified2016-05-09
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