Mechanical properties and microstructures of brass alloy H70 subjected to pulse current

Rong Fan; Kun Min Zhao; Jin Hua Ruan; Jian Cao

doi:10.3969/j.issn.1005-3026.2016.09.022

Mechanical properties and microstructures of brass alloy H70 subjected to pulse current

Rong Fan^*, Kun Min Zhao, Jin Hua Ruan, Jian Cao

^*Corresponding author for this work

Mechanical Engineering

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

Abstract

Effects of electric pulse duration and relative peak temperature on mechanical properties were studied by high precision electrically assisted (EA) tension test, and microstructures were observed by metallographic analysis. The results indicated that higher temperature generated by longer electric pulse duration resulted in more reduction in tensile strength. Higher temperature peak generates lower stress recovery at the same prestrain level. When the peak temperature was over than 600℃, stress recovery decreased by 50%, which was nearly the initial yield strength under regular tension test. Recrystallization and grain growth were observed on the specimen after EA tension. Grain refinement and dendritic growth occurred near the fracture area.

Original language	English (US)
Pages (from-to)	1322-1326
Number of pages	5
Journal	Dongbei Daxue Xuebao/Journal of Northeastern University
Volume	37
Issue number	9
DOIs	https://doi.org/10.3969/j.issn.1005-3026.2016.09.022
State	Published - Sep 1 2016

Keywords

Brass alloy H70
Electric pulse
Mechanical properties
Microstructure
Recrystallization

ASJC Scopus subject areas

Engineering(all)
Computer Science Applications
Applied Mathematics

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10.3969/j.issn.1005-3026.2016.09.022

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title = "Mechanical properties and microstructures of brass alloy H70 subjected to pulse current",

abstract = "Effects of electric pulse duration and relative peak temperature on mechanical properties were studied by high precision electrically assisted (EA) tension test, and microstructures were observed by metallographic analysis. The results indicated that higher temperature generated by longer electric pulse duration resulted in more reduction in tensile strength. Higher temperature peak generates lower stress recovery at the same prestrain level. When the peak temperature was over than 600℃, stress recovery decreased by 50%, which was nearly the initial yield strength under regular tension test. Recrystallization and grain growth were observed on the specimen after EA tension. Grain refinement and dendritic growth occurred near the fracture area.",

keywords = "Brass alloy H70, Electric pulse, Mechanical properties, Microstructure, Recrystallization",

author = "Rong Fan and Zhao, {Kun Min} and Ruan, {Jin Hua} and Jian Cao",

year = "2016",

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doi = "10.3969/j.issn.1005-3026.2016.09.022",

language = "English (US)",

volume = "37",

pages = "1322--1326",

journal = "Dongbei Daxue Xuebao/Journal of Northeastern University",

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TY - JOUR

T1 - Mechanical properties and microstructures of brass alloy H70 subjected to pulse current

AU - Fan, Rong

AU - Zhao, Kun Min

AU - Ruan, Jin Hua

AU - Cao, Jian

PY - 2016/9/1

Y1 - 2016/9/1

N2 - Effects of electric pulse duration and relative peak temperature on mechanical properties were studied by high precision electrically assisted (EA) tension test, and microstructures were observed by metallographic analysis. The results indicated that higher temperature generated by longer electric pulse duration resulted in more reduction in tensile strength. Higher temperature peak generates lower stress recovery at the same prestrain level. When the peak temperature was over than 600℃, stress recovery decreased by 50%, which was nearly the initial yield strength under regular tension test. Recrystallization and grain growth were observed on the specimen after EA tension. Grain refinement and dendritic growth occurred near the fracture area.

AB - Effects of electric pulse duration and relative peak temperature on mechanical properties were studied by high precision electrically assisted (EA) tension test, and microstructures were observed by metallographic analysis. The results indicated that higher temperature generated by longer electric pulse duration resulted in more reduction in tensile strength. Higher temperature peak generates lower stress recovery at the same prestrain level. When the peak temperature was over than 600℃, stress recovery decreased by 50%, which was nearly the initial yield strength under regular tension test. Recrystallization and grain growth were observed on the specimen after EA tension. Grain refinement and dendritic growth occurred near the fracture area.

KW - Brass alloy H70

KW - Electric pulse

KW - Mechanical properties

KW - Microstructure

KW - Recrystallization

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DO - 10.3969/j.issn.1005-3026.2016.09.022

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JO - Dongbei Daxue Xuebao/Journal of Northeastern University

JF - Dongbei Daxue Xuebao/Journal of Northeastern University

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ER -

Mechanical properties and microstructures of brass alloy H70 subjected to pulse current

Abstract

Keywords

ASJC Scopus subject areas

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