Effect of Tempering Temperature on Impact Wear Behavior of 30Cr3Mo2WNi Hot-Working Die Steel

Cheng Zhang; Pu Li; Shizhong Wei; Long You; Xiaodong Wang; Feng Mao; Dongliang Jin; Chong Chen; Kunming Pan; Cheng Luo; Jingkui Li

doi:10.3389/fmats.2019.00149

Frontiers in Materials (Jul 2019)

Effect of Tempering Temperature on Impact Wear Behavior of 30Cr3Mo2WNi Hot-Working Die Steel

Cheng Zhang,
Pu Li,
Shizhong Wei,
Long You,
Xiaodong Wang,
Feng Mao,
Dongliang Jin,
Chong Chen,
Kunming Pan,
Cheng Luo,
Jingkui Li

Affiliations

Cheng Zhang: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Pu Li: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Shizhong Wei: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Long You: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Xiaodong Wang: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Feng Mao: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Dongliang Jin: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Chong Chen: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Kunming Pan: National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials, School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, China
Cheng Luo: School of Mechanical Engineering, Yangtze University, Jingzhou, China
Jingkui Li: School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China

DOI: https://doi.org/10.3389/fmats.2019.00149
Journal volume & issue: Vol. 6

Abstract

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Effects of tempering temperature on impact wear of 30Cr3Mo2WNi hot-working die steel are investigated by SEM, TEM, hardness, and impact wear tests. From 300 to 680°C, the hardness of the steel decreases and the impact toughness increases with increasing tempering temperature, while a secondary hardening with maximum hardness, 48.6 HRC, is achieved at 550°C. Fatigue delamination wear is the main mechanism during the impact wear, and three typical damage features are identified with different tempering temperatures. Brittle fatigue cracks are easy to occur in the steels tempered at 300°C. Ductile fatigue cracks occur at medium temperatures. Surfaces of steel tempered are extruded at 680°C.

Published in Frontiers in Materials

ISSN: 2296-8016 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Technology
Website: https://www.frontiersin.org/journals/materials

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