Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure

Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure

A variable temperature super-solidus liquid phase sintering (SLPS) technique is employed in fabrication of high chromium cast iron (HCCI) with 25wt.%Cr to extend its sintering temperature window. Its microstructure evolution, mechanical properties, and abrasive wear behavior are investigated systemi...

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Bibliographic Details
Main Authors: Jinghong Gu, Pingan Xiao, Simin Gu, Rong Lv, Jikang Zhao, Siyuan Zhong
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Metals
Subjects:
high chromium iron
SLPS
microstructure
mechanical property
impact abrasive wear
Online Access:https://www.mdpi.com/2075-4701/11/5/785
id doaj-494247ffe517482abc37d61a9bd540b5
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spelling doaj-494247ffe517482abc37d61a9bd540b52021-05-31T23:50:24ZengMDPI AGMetals2075-47012021-05-011178578510.3390/met11050785Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its MicrostructureJinghong Gu0Pingan Xiao1Simin Gu2Rong Lv3Jikang Zhao4Siyuan Zhong5College of Materials Science and Engineering, Hunan University, Changsha 410082, ChinaCollege of Materials Science and Engineering, Hunan University, Changsha 410082, ChinaCollege of Materials Science and Engineering, Hunan University, Changsha 410082, ChinaCollege of Materials Science and Engineering, Hunan University, Changsha 410082, ChinaCollege of Materials Science and Engineering, Hunan University, Changsha 410082, ChinaCollege of Materials Science and Engineering, Hunan University, Changsha 410082, ChinaA variable temperature super-solidus liquid phase sintering (SLPS) technique is employed in fabrication of high chromium cast iron (HCCI) with 25wt.%Cr to extend its sintering temperature window. Its microstructure evolution, mechanical properties, and abrasive wear behavior are investigated systemically. The results indicate that the variable temperature SLPS can obtain samples with full density plus fine and uniformly distributed carbide particles, and its carbide volume fraction is increased by 4~5% in comparison with the fixed temperature SLPSed one. Meanwhile, its bending strength and impact toughness can be raised by 8.0% and 16.7%, respectively. Finally, the sintering temperature window for variable temperature SLPS of HCCI is extended by 12 °C, reaching 27 °C.https://www.mdpi.com/2075-4701/11/5/785high chromium ironSLPSmicrostructuremechanical propertyimpact abrasive wear
collection DOAJ
language English
format Article
sources DOAJ
author Jinghong Gu
Pingan Xiao
Simin Gu
Rong Lv
Jikang Zhao
Siyuan Zhong
spellingShingle Jinghong Gu
Pingan Xiao
Simin Gu
Rong Lv
Jikang Zhao
Siyuan Zhong
Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure
Metals
high chromium iron
SLPS
microstructure
mechanical property
impact abrasive wear
author_facet Jinghong Gu
Pingan Xiao
Simin Gu
Rong Lv
Jikang Zhao
Siyuan Zhong
author_sort Jinghong Gu
title Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure
title_short Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure
title_full Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure
title_fullStr Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure
title_full_unstemmed Fixed and Variable Temperature Super-Solidus Liquid Phase Sintering of High Chromium Cast Iron with 25 Wt.%CR and Its Microstructure
title_sort fixed and variable temperature super-solidus liquid phase sintering of high chromium cast iron with 25 wt.%cr and its microstructure
publisher MDPI AG
series Metals
issn 2075-4701
publishDate 2021-05-01
description A variable temperature super-solidus liquid phase sintering (SLPS) technique is employed in fabrication of high chromium cast iron (HCCI) with 25wt.%Cr to extend its sintering temperature window. Its microstructure evolution, mechanical properties, and abrasive wear behavior are investigated systemically. The results indicate that the variable temperature SLPS can obtain samples with full density plus fine and uniformly distributed carbide particles, and its carbide volume fraction is increased by 4~5% in comparison with the fixed temperature SLPSed one. Meanwhile, its bending strength and impact toughness can be raised by 8.0% and 16.7%, respectively. Finally, the sintering temperature window for variable temperature SLPS of HCCI is extended by 12 °C, reaching 27 °C.
topic high chromium iron
SLPS
microstructure
mechanical property
impact abrasive wear
url https://www.mdpi.com/2075-4701/11/5/785
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AT ronglv fixedandvariabletemperaturesupersolidusliquidphasesinteringofhighchromiumcastironwith25wtcranditsmicrostructure
AT jikangzhao fixedandvariabletemperaturesupersolidusliquidphasesinteringofhighchromiumcastironwith25wtcranditsmicrostructure
AT siyuanzhong fixedandvariabletemperaturesupersolidusliquidphasesinteringofhighchromiumcastironwith25wtcranditsmicrostructure
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