Particle Variations and Effect on the Microstructure and Microhardness of Ti6al4V Hybrid Metal Matrix System

O. F. Ochonogor; E. T. Akinlabi; K. D. Nyembwe; Sisa Pityana; M. B. Shongwe

doi:10.1016/j.promfg.2016.12.092

Particle Variations and Effect on the Microstructure and Microhardness of Ti6al4V Hybrid Metal Matrix System

O. F. Ochonogor, E. T. Akinlabi, K. D. Nyembwe, Sisa Pityana, M. B. Shongwe

Mechanical Engineering Science

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Manufacture of hybrid Ti6Al4 V alloy systems for application specifically in hot parts of turbine engines has been a challenge in recent years. This is due to the need to increase efficiency and reduce combustion rate and emission. In this work, three reinforcement powders namely Ti6Al4 V, B4C and BN were fed through three different hopper systems to create a melt pool on the surface of Ti6Al4 V alloy substrate. Three percentage variations of these powders with equal amount of B4C and BN were obtained as follow: 3.0 Ti6Al4 V, B4C and BN, 3.2 Ti6Al4 V, B4C and BN, and 3.4 Ti6Al4 V, B4C and BN systems. Laser coating experiment was done at 1400W. The influence of difference in variation of powder on the microstructure and hardness values was investigated. The hardness value improved significantly in the following order. 971.1 HV0.5, 971.1 HV0.5 and 1161.8 HV0.5 respectively. The overall coatings of layers were characterized by good microstructural homogeneity, excellent bonding with a metal substrate.

Original language	English
Pages (from-to)	616-621
Number of pages	6
Journal	Procedia Manufacturing
Volume	7
DOIs	https://doi.org/10.1016/j.promfg.2016.12.092
Publication status	Published - 2017

Keywords

Hardness Property
Laser Coating
Microstructure
Thermodynamics
Ti6Al4 V alloy

ASJC Scopus subject areas

Artificial Intelligence
Industrial and Manufacturing Engineering

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10.1016/j.promfg.2016.12.092

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title = "Particle Variations and Effect on the Microstructure and Microhardness of Ti6al4V Hybrid Metal Matrix System",

abstract = "Manufacture of hybrid Ti6Al4 V alloy systems for application specifically in hot parts of turbine engines has been a challenge in recent years. This is due to the need to increase efficiency and reduce combustion rate and emission. In this work, three reinforcement powders namely Ti6Al4 V, B4C and BN were fed through three different hopper systems to create a melt pool on the surface of Ti6Al4 V alloy substrate. Three percentage variations of these powders with equal amount of B4C and BN were obtained as follow: 3.0 Ti6Al4 V, B4C and BN, 3.2 Ti6Al4 V, B4C and BN, and 3.4 Ti6Al4 V, B4C and BN systems. Laser coating experiment was done at 1400W. The influence of difference in variation of powder on the microstructure and hardness values was investigated. The hardness value improved significantly in the following order. 971.1 HV0.5, 971.1 HV0.5 and 1161.8 HV0.5 respectively. The overall coatings of layers were characterized by good microstructural homogeneity, excellent bonding with a metal substrate.",

keywords = "Hardness Property, Laser Coating, Microstructure, Thermodynamics, Ti6Al4 V alloy",

author = "Ochonogor, {O. F.} and Akinlabi, {E. T.} and Nyembwe, {K. D.} and Sisa Pityana and Shongwe, {M. B.}",

note = "Publisher Copyright: {\textcopyright} 2016",

year = "2017",

doi = "10.1016/j.promfg.2016.12.092",

language = "English",

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AU - Ochonogor, O. F.

AU - Akinlabi, E. T.

AU - Nyembwe, K. D.

AU - Pityana, Sisa

AU - Shongwe, M. B.

PY - 2017

Y1 - 2017

N2 - Manufacture of hybrid Ti6Al4 V alloy systems for application specifically in hot parts of turbine engines has been a challenge in recent years. This is due to the need to increase efficiency and reduce combustion rate and emission. In this work, three reinforcement powders namely Ti6Al4 V, B4C and BN were fed through three different hopper systems to create a melt pool on the surface of Ti6Al4 V alloy substrate. Three percentage variations of these powders with equal amount of B4C and BN were obtained as follow: 3.0 Ti6Al4 V, B4C and BN, 3.2 Ti6Al4 V, B4C and BN, and 3.4 Ti6Al4 V, B4C and BN systems. Laser coating experiment was done at 1400W. The influence of difference in variation of powder on the microstructure and hardness values was investigated. The hardness value improved significantly in the following order. 971.1 HV0.5, 971.1 HV0.5 and 1161.8 HV0.5 respectively. The overall coatings of layers were characterized by good microstructural homogeneity, excellent bonding with a metal substrate.

AB - Manufacture of hybrid Ti6Al4 V alloy systems for application specifically in hot parts of turbine engines has been a challenge in recent years. This is due to the need to increase efficiency and reduce combustion rate and emission. In this work, three reinforcement powders namely Ti6Al4 V, B4C and BN were fed through three different hopper systems to create a melt pool on the surface of Ti6Al4 V alloy substrate. Three percentage variations of these powders with equal amount of B4C and BN were obtained as follow: 3.0 Ti6Al4 V, B4C and BN, 3.2 Ti6Al4 V, B4C and BN, and 3.4 Ti6Al4 V, B4C and BN systems. Laser coating experiment was done at 1400W. The influence of difference in variation of powder on the microstructure and hardness values was investigated. The hardness value improved significantly in the following order. 971.1 HV0.5, 971.1 HV0.5 and 1161.8 HV0.5 respectively. The overall coatings of layers were characterized by good microstructural homogeneity, excellent bonding with a metal substrate.

KW - Hardness Property

KW - Laser Coating

KW - Microstructure

KW - Thermodynamics

KW - Ti6Al4 V alloy

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Particle Variations and Effect on the Microstructure and Microhardness of Ti6al4V Hybrid Metal Matrix System

Abstract

Keywords

ASJC Scopus subject areas

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