Development Trend in Composition Optimization, Microstructure Manipulation, and Strengthening Methods of Die Steels under Lightweight and Integrated Die Casting

ZJ Bao, HY Yang, BX Dong, F Chang, CD Li, Y Jiang… - Materials, 2023 - mdpi.com
In the general environment of lightweight automobiles, the integrated die-casting technology
proposed by Tesla has become the general mode to better achieve weight reduction in …

[HTML][HTML] Understanding the microstructural evolution and fretting wear behaviors of M50 bearing steel heat treated at different temperatures

W Wei, J Ke, Z Liu, G Liu, Q Liu, D Qian… - Journal of Materials …, 2023 - Elsevier
For M50 bearing steel, which is widely used in aerospace engine main bearings, fretting
wear is an important but neglected category of wear failure during engine cold startup. High …

Effect of martensite-austenite island decomposition during two-step tempering on the fracture surface morphology of impact and tensile tested Mn-Ni-Mo steel

R Ranjan, A Meena - Engineering Failure Analysis, 2024 - Elsevier
Abstract Mn-Ni-Mo steels used in reactor pressure vessel manufacturing often exhibit
martensite-austenite (M/A) islands post-quenching. These islands demonstrate the …

Heat Treatment Process, Microstructure, and Mechanical Properties of Spring Steel with Ultra-High Strength and Toughness

F Shi, J Zheng, J Zhang, Y Zhao, L Chen - Metals, 2024 - mdpi.com
In this research, a new type of spring steel with ultra-high strength and toughness was
designed, and its mechanical properties and microstructure under different heat treatment …

Impact fracture failure analysis and mechanism study of a TBM disc cutter ring

G Hu, H Zhao, J Fu, J Xue, Y Xia - Engineering Failure Analysis, 2024 - Elsevier
The fracture of the disc cutting ring significantly impedes the efficiency of TBM. This
phenomenon is particularly obvious in geological conditions with high impact loads, such as …

[HTML][HTML] The Effects of Austenitization Temperature on the Microstructural Characteristics and Mechanical Properties of Cr-Mo-V Hot Work Tool Steels with Different …

CY Chen, I Chiang, YC Kang - Journal of Materials Research and …, 2024 - Elsevier
Abstract Two kinds of Cr-Mo-V hot work tool steels with different nitrogen contents, ie High-N
steel and Low-N steel, were heat treated to investigate phase transformation phenomena in …

[HTML][HTML] Martensite-Austenite Transformation During Dual-Stage Tempering and Work-Hardening Characteristics of Mn-Ni-Mo Steel

R Ranjan, A Meena - Journal of Materials Research and Technology, 2024 - Elsevier
The reactor pressure vessel (RPV) in nuclear power plants is mainly made from Mn-Ni-Mo
steel. After quenching, this steel's microstructure features martensite-austenite (MA) islands …

Influence of prior austenite grain size on martensite-austenite islands morphology and decomposition characteristics during two-step tempering in Mn-Ni-Mo steel

R Ranjan, A Meena - Materials Today Communications, 2024 - Elsevier
Abstract Martensite-austenite (M/A) islands are typical in the quenched microstructure of Mn-
Ni-Mo steel, frequently utilized for fabricating reactor pressure vessels (RPV). These islands …

[HTML][HTML] Thermomechanical Processing for Improved Mechanical Properties of HT9 Steels

TS Byun, DA Collins, TG Lach, JP Choi, SA Maloy - Materials, 2024 - mdpi.com
Thermomechanical processing (TMP) of ferritic–martensitic (FM) steels, such as HT9 (Fe–
12Cr–1MoWV) steels, involves normalizing, quenching, and tempering to create a …

Metallic Materials: Structure Transition, Processing, Characterization and Applications

J Hu, Z He, X Liu - Materials, 2024 - mdpi.com
This Special Issue provides readers with up-to-date information on the recent progress in the
structure transition, processing, characterization, and applications of metals, including …