Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment Casting
In this paper, AISI 441 stainless steel was investigated as a casting steel using the investment casting process (ICP). The microstructure and mechanical properties of the as-cast and normalizing treatment samples were analyzed. The results show that the tensile strength of as-cast AISI 441 prepared...
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doaj-6607a2405177497891b8799223698b8d2021-03-14T00:01:54ZengMDPI AGMetals2075-47012021-03-011147447410.3390/met11030474Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment CastingYukun Hu0Weimin Mao1Pengyu Yan2Naiyong Li3School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaIn this paper, AISI 441 stainless steel was investigated as a casting steel using the investment casting process (ICP). The microstructure and mechanical properties of the as-cast and normalizing treatment samples were analyzed. The results show that the tensile strength of as-cast AISI 441 prepared by ICP is 458 MPa, and the elongation is 22.7%. Normalizing treatment can improve the mechanical performance of AISI 441 prepared by ICP, but strength and elongation have a slightly decreasing trend with increasing normalizing temperature and time. The suitable normalizing treatment condition is 850 °C for 2 h. It was found that normalizing temperature and time have little effect on grain size and carbonitride. There was an increasing trend in the mean equivalent length (MEL) of the Laves phase as normalizing temperature and time increases. The effect of normalizing treatment on strength increase was mainly related to the change of the Laves phase size.https://www.mdpi.com/2075-4701/11/3/474AISI 441investment castingmicrostructureLaves phasemechanical properties |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yukun Hu Weimin Mao Pengyu Yan Naiyong Li |
spellingShingle |
Yukun Hu Weimin Mao Pengyu Yan Naiyong Li Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment Casting Metals AISI 441 investment casting microstructure Laves phase mechanical properties |
author_facet |
Yukun Hu Weimin Mao Pengyu Yan Naiyong Li |
author_sort |
Yukun Hu |
title |
Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment Casting |
title_short |
Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment Casting |
title_full |
Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment Casting |
title_fullStr |
Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment Casting |
title_full_unstemmed |
Effect of Normalizing Treatment on Mechanical Properties of AISI 441 Stainless Steel Prepared by Investment Casting |
title_sort |
effect of normalizing treatment on mechanical properties of aisi 441 stainless steel prepared by investment casting |
publisher |
MDPI AG |
series |
Metals |
issn |
2075-4701 |
publishDate |
2021-03-01 |
description |
In this paper, AISI 441 stainless steel was investigated as a casting steel using the investment casting process (ICP). The microstructure and mechanical properties of the as-cast and normalizing treatment samples were analyzed. The results show that the tensile strength of as-cast AISI 441 prepared by ICP is 458 MPa, and the elongation is 22.7%. Normalizing treatment can improve the mechanical performance of AISI 441 prepared by ICP, but strength and elongation have a slightly decreasing trend with increasing normalizing temperature and time. The suitable normalizing treatment condition is 850 °C for 2 h. It was found that normalizing temperature and time have little effect on grain size and carbonitride. There was an increasing trend in the mean equivalent length (MEL) of the Laves phase as normalizing temperature and time increases. The effect of normalizing treatment on strength increase was mainly related to the change of the Laves phase size. |
topic |
AISI 441 investment casting microstructure Laves phase mechanical properties |
url |
https://www.mdpi.com/2075-4701/11/3/474 |
work_keys_str_mv |
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