Results 101 to 110 of about 6,376 (231)

A Review on Cracking in Laser Additive Manufacturing of Nickel‐Based Superalloys: Types, Formation Mechanisms, and Suppression Strategies

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Nickel‐based superalloys (Ni‐based superalloys) have attracted extensive attention in laser additive manufacturing (LAM) due to their capability to directly fabricate complex and high‐performance structural components. However, the rapid melting and solidification inherent to LAM result in intense thermal cycling, which induces high residual ...
Tianxiang Lin, Ciying Li, Hongkai Zhou, Rui Chen, Yi Li, Can Cui, Lizhang Zhang, Maoyuan Li, Zhenzhong Wang, Wei‐Wei Xu   +9 more
wiley   +1 more source

Fracture toughness, fatigue crack resistance and wear resistance of two railroad steels

Journal of Materials Research and Technology, 2020
This research evaluated the microstructure and compared important mechanical properties of two steels for use in the railway sector. The main objective of the work was to verify the possibility of replacing a traditional C-Mn-Si pearlitic steel widely ...
Leonardo B. Godefroid, Andrew T. Souza, Maria A. Pinto   +2 more
doaj   +1 more source

Effect of V and N on the microstructure evolution during continuous casting of steel [PDF]

, 2012
Low Carbon (LC) steel is not expected to be sensitive to hot tearing and/or cracking while microalloyed steels are known for their high cracking sensitivity during continuous casting. Experience of the Direct Sheet Plant caster at Tata Steel in Ijmuiden (
B Santillana, Babaskin Y Z, D G Eskin, Emi T, Feurer U, L Katgerman, R Boom, Santillana B   +7 more
core   +1 more source

Development of Microalloyed Intragranular Ferrite Steel With High Strength and Toughness

Teshugang, 2005
The general chemical compositions of microalloyed intragranular ferrite steels are 0.2~0.4C,0.2～0.8Si, 1.0~1.7Mn,0.05～0. 15V. It is a main measure to increase the strength and toughness of ferite-pearlite microalloyed steel using recrystallized forging ...
陈思联, 林军, 戴观文
doaj  

MICROALLOYED STEELS FOR THE AUTOMOTIVE INDUSTRY [PDF]

Tecnologia em Metalurgia Materiais e Mineração, 2014
Two major drivers for the use of newer steels in the automotive industry are fuel efficiency and increased safety performance. Fuel efficiency is mainly a function of weight of steel parts, which in turn, is controlled by gauge and design. Safety is determined by the energy absorbing capacity of the steel used to make the part. All of these factors are
openaire   +2 more sources

Achieving exceptional strength-low temperature toughness synergy in the microalloyed medium carbon steel via layered heterogeneous structure

Materials & Design
The further advancement of microalloyed medium carbon steels is often limited by low-temperature toughness instability. A microalloyed medium carbon steel with both strength and low-temperature toughness was produced through a warm rolling and short-time
Wanli Sun, Chaolei Zhang, Jia Guo, Xing Tong, Gengyi Dong, Shuize Wang, Junheng Gao, Honghui Wu, Haitao Zhao, Jun Lu, Yuhe Huang, Xinping Mao   +11 more
doaj   +1 more source

Hot Deformation Behavior of Austenite of a Microalloyed Steel Containing Boron

Teshugang, 2005
The stress-strain curves and microstructure evolution o£ a microalloyed steel - 0.05C, 1.57Mn, 0.50Cu, 0.05Nb, 0.014Ti, 0.001 2B between 800 and 1 100 X.
李立新, 邓宁, 洪杰, 汪凌云
doaj  

Effect of Precipitated Particles on Austenite Grain Growth of Al- and Nb-Microalloyed 20MnCr Gear Steel

Metals
The paper deals with the effect of the morphology characteristics, grain size, and the volume fraction of AlN- and NbC-precipitated particles on the prior austenite grain growth behavior in the Al- and Nb-microalloying 20MnCr gear steel during pseudo ...
Yingqi Zhu, Shitao Fan, Xiuzhen Lian, Na Min   +3 more
doaj   +1 more source

Interaction between Microalloying Additions and Phase Transformation during Intercritical Deformation in Low Carbon Steels

Metals, 2019
Heavy gauge line pipe and structural steel plate materials are often rolled in the two-phase region for strength reasons. However, strength and toughness show opposite trends, and the exact effect of each rolling process parameter remains unclear.
Unai Mayo, Nerea Isasti, Jose M. Rodriguez-Ibabe, Pello Uranga   +3 more
doaj   +1 more source

Evolution of Austenite Microstructure and Precipitation State during Hot Rolling of a Nb-Microalloyed Steel [PDF]

, 2003
Hot torsion tests were used to simulate hot rolling of a Nb-microalloyed steel. Subsequent graphic representation of Mean Flow Stress (MFS) versus the inverse of absolute temperature for each pass allowed to know the critical rolling temperatures (Tnr ...
Gómez, Manuel, Medina, Sebastián F., Quispe, Alberto   +2 more
core   +2 more sources