The Effect of Microstructure Size on Microstructure and Properties of High Boron Alloy During Quenching and Partitioning (Q&P) Process

被引：2

作者：

Li, Zhao ^{[1
]}

Wu, Run ^{[1
]}

Xu, Cheng ^{[1
]}

Wang, Yu ^{[2
]}

Zeng, Songsheng ^{[3
]}

Chen, Lei ^{[1
]}

机构：

[1] Wuhan Univ Sci & Technol, Sch Mat & Met, Wuhan 430081, Peoples R China

[2] Univ New South Wales, Mark Wainwright Analyt Ctr, Sydney, NSW 2052, Australia

[3] Valin ArcelorMittal Automot Steel Co Ltd, Loudi 417009, Peoples R China

来源：

TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2023年 / 76卷 / 06期

基金：

中国国家自然科学基金;

关键词：

High boron alloy; Austenite dendrite arm size; Carbon partitioning; Retained austenite; MECHANICAL-PROPERTIES; RETAINED AUSTENITE; VOLUME FRACTION; GRAIN-SIZE; MORPHOLOGY; SOLIDIFICATION; STABILITY; DUCTILITY;

D O I：

10.1007/s12666-022-02861-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The microstructure and mechanical properties of two high boron alloys with different austenite dendrite arm sizes, namely alloy A and alloy B, were investigated before and after being treated by the quenching and partitioning (Q&P) process. The results show that the matrix of alloys is composed of fresh martensite, secondary martensite and film-like or lath-like retained austenite (RA) after being Q&P treated. The fine martensite laths, caused by the smaller size of the dendrite arm, are able to promote the diffusion of carbon during the partitioning process, leading to the formation of RA with a smaller size and higher carbon content. The partial spheroidization of the net-like boride and the improvement of matrix toughness significantly improve the impact toughness and wear resistance of the alloys.

引用

页码：1535 / 1543

页数：9

共 25 条

[1] The influence of the austenite grain size on the microstructural development during quenching and partitioning processing of a low-carbon steel
Celada-Casero, Carola
Kwakernaak, Cees
Sietsma, Jilt
Santofimia, Maria Jesus
[J]. MATERIALS & DESIGN, 2019, 178
[2] Effect of prior austenite grain size on the evolution of microstructure and mechanical properties of an intercritically annealed medium manganese steel
Chandan, A. K.
Bansal, G. K.
Kundu, J.
Chakraborty, J.
Chowdhury, S. Ghosh
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 768
[3] Effects of grain size, temperature and strain rate on the mechanical properties of polycrystalline graphene - A molecular dynamics study
Chen, M. Q.
Quek, S. S.
Sha, Z. D.
Chiu, C. H.
Pei, Q. X.
Zhang, Y. W.
[J]. CARBON, 2015, 85 : 135 - 146
[4] Near-Ac3 austenitized ultra-fine-grained quenching and partitioning (Q&P) steel
Cho, Lawrence
Seo, Eun Jung
De Cooman, Bruno C.
[J]. SCRIPTA MATERIALIA, 2016, 123 : 69 - 72
[5] MARTENSITIC NUCLEATION - REVISITED
COHEN, M
[J]. MATERIALS TRANSACTIONS JIM, 1992, 33 (03): : 178 - 183
[6] The role of boron content in high alloy white cast iron (Ni-Hard 4) on microstructure, mechanical properties and wear resistance
Col, Mustafa
Koc, Funda Gul
Oktem, Hasan
Kir, Durmus
[J]. WEAR, 2016, 348 : 158 - 165
[7] SOLIDIFICATION PROCESSING
FLEMINGS, MC
[J]. METALLURGICAL TRANSACTIONS, 1974, 5 (10): : 2121 - 2134
[8] Effect of rare earth oxide nano-additives on micro-mechanical properties and erosion behavior of Fe-Cr-C-B hardfacing alloys
Gou, Junfeng
Wang, You
Wang, Chaohui
Chu, Ruiqing
Liu, Saiyue
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 691 : 800 - 810
[9] Microstructure, mechanical properties and toughening mechanism of directional Fe2B crystal in Fe-B alloy with trace Cr addition
Jian, Yongxin
Huang, Zhifu
Liu, Xiaoting
Sun, Jialin
Xing, Jiandong
[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 57 : 172 - 179
[10] Effects of chromium additions on the three-body abrasive wear behavior of Fe-3.0 wt% B alloy
Jian, Yongxin
Huang, Zhifu
Xing, Jiandong
Li, Junfu
[J]. WEAR, 2017, 378-379 : 165 - 173

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