Influence of heat treatment on mechanical properties of clinched joints in titanium alloy sheets

Yue Zhang, Xiaocong He, Kai Zeng, Lei Lei, Fengshou Gu, Andrew Ball

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Clinching is a widely used sheet material connection technology in different industrial fields. The effects of annealing and quenching on the mechanical performances of clinched titanium alloy joints were investigated in this research. Tensile–shear tests were carried out to study the join ability, load-bearing capacity, energy absorption, and failure modes of different clinched titanium alloy joints. The F–N curves were obtained from fatigue tests to characterize the fatigue properties of different types of clinched joints. The typical fracture interfaces were analyzed by scanning electron microscopy. Results show that the tensile–shear strength of the clinched titanium alloy joints was severely decreased by quenching, but both tensile–shear strength and energy absorption were improved by annealing. For all types of joints tested, fatigue cracks always appeared near the indentation of the upper sheet. Analysis of the microstructure suggested that the plasticity of the titanium was improved by annealing.

LanguageEnglish
Pages3349-3361
Number of pages13
JournalInternational Journal of Advanced Manufacturing Technology
Volume91
Issue number9-12
Early online date22 Jan 2017
DOIs
Publication statusPublished - 1 Aug 2017

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Titanium alloys
Heat treatment
Energy absorption
Annealing
Shear strength
Mechanical properties
Quenching
Fatigue of materials
Bearing capacity
Indentation
Failure modes
Plasticity
Loads (forces)
Titanium
Microstructure
Scanning electron microscopy

Cite this

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abstract = "Clinching is a widely used sheet material connection technology in different industrial fields. The effects of annealing and quenching on the mechanical performances of clinched titanium alloy joints were investigated in this research. Tensile–shear tests were carried out to study the join ability, load-bearing capacity, energy absorption, and failure modes of different clinched titanium alloy joints. The F–N curves were obtained from fatigue tests to characterize the fatigue properties of different types of clinched joints. The typical fracture interfaces were analyzed by scanning electron microscopy. Results show that the tensile–shear strength of the clinched titanium alloy joints was severely decreased by quenching, but both tensile–shear strength and energy absorption were improved by annealing. For all types of joints tested, fatigue cracks always appeared near the indentation of the upper sheet. Analysis of the microstructure suggested that the plasticity of the titanium was improved by annealing.",
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Influence of heat treatment on mechanical properties of clinched joints in titanium alloy sheets. / Zhang, Yue; He, Xiaocong; Zeng, Kai; Lei, Lei; Gu, Fengshou; Ball, Andrew.

In: International Journal of Advanced Manufacturing Technology, Vol. 91, No. 9-12, 01.08.2017, p. 3349-3361.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Influence of heat treatment on mechanical properties of clinched joints in titanium alloy sheets

AU - Zhang, Yue

AU - He, Xiaocong

AU - Zeng, Kai

AU - Lei, Lei

AU - Gu, Fengshou

AU - Ball, Andrew

PY - 2017/8/1

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AB - Clinching is a widely used sheet material connection technology in different industrial fields. The effects of annealing and quenching on the mechanical performances of clinched titanium alloy joints were investigated in this research. Tensile–shear tests were carried out to study the join ability, load-bearing capacity, energy absorption, and failure modes of different clinched titanium alloy joints. The F–N curves were obtained from fatigue tests to characterize the fatigue properties of different types of clinched joints. The typical fracture interfaces were analyzed by scanning electron microscopy. Results show that the tensile–shear strength of the clinched titanium alloy joints was severely decreased by quenching, but both tensile–shear strength and energy absorption were improved by annealing. For all types of joints tested, fatigue cracks always appeared near the indentation of the upper sheet. Analysis of the microstructure suggested that the plasticity of the titanium was improved by annealing.

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