Results 31 to 40 of about 1,169 (181)

Effect of Laser Beam Overlap Rate on Mechanical Properties of Aluminum Alloy Arc Welding with Laser Peening

Metals
This study aims to investigate the effect of the laser beam overlap rate on the mechanical properties of Al3003 aluminum alloy arc weldment with laser peening.
Jae-Ook Jeon, Ye-Sol Yun, Moo-Keun Song, Pyeong-Soo Kim, Jong-Do Kim   +4 more
doaj   +1 more source

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

The Formation and Hardening Mechanisms of Multiscale Gradient Structures Tailoring by Explosive Hardening and Annealing in Commercially Pure Titanium

Rare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Gradient structures (GS) introduced by plastic deformation have been shown to effectively enhance the surface properties of metallic materials. However, the GS fabricated by existing methods often suffers from limited hardening depth and limited control over the GS layer, which constrain their engineering applications.
Yansong Guo, Lisha Deng, Zheng Tian, Shuqin Zhang, Gangting Wang, Pengwan Chen   +5 more
wiley   +1 more source

Increasing the Reuse Potential of High‐Strength Steels by Extending the Fatigue Life through Surface Treatments

steel research international, Volume 97, Issue 8, Page 4326-4336, August 2026.
Surface reconditioning through mechanical and electrochemical polishing is shown to extend the fatigue life of predamaged 42CrMo4 steel by over 12 times. By removing ≈100 μm of surface material, surface‐driven fatigue damage is mitigated. This study introduces a reuse potential metric to evaluate fatigue recovery and support sustainable steel reuse. To
Ayush Shrivastava, Oguz Gulbay, Srinivasa Raghavan Raghuraman, Marion Kreins, Fabian Weber, Peter Starke, Alexander Gramlich, Ulrich Krupp   +7 more
wiley   +1 more source

Structure and fatigue of titanium alloy samples under laser impact treatment

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
The effect of laser shock peening on the level and depth of residual stresses, microstructure and fatigue life in titanium alloy samples is considered. At present, shot peening and hydro shot peening are most widely used in the aircraft engine industry ...
A. A. Shiryaev, A. S. Milenin, S. V. Zherebtsov, M. S. Ozerov, О. A. Plekhov, A. N. Vshivkov, Е. A. Gachegova, V. V. Karmanov   +7 more
doaj   +1 more source

Laser Peening of Metals - Enabling Laser Technology [PDF]

MRS Proceedings, 1997
ABSTRACTLaser shot peening, a surface treatment for metals, is shown to induce compressive residual stresses of over 0.040 inch to provide improved resistance to vairous forms of failure. A solid state laser technology employing Nd:glass slabs and phase conjugation enables this process to move into high throughput production processing.
C. Brent Dane, Lloyd A. Hackel
openaire   +1 more source

Toughening of TiO2 via Femtosecond Laser Shock Peening

Journal of the American Ceramic Society, Volume 109, Issue 8, August 2026.
ABSTRACT Most ceramics have low fracture toughness (<5 MPa m$\sqrt{m}$) at room temperature. This work explores the feasibility of toughening TiO2 via femtosecond laser shock peening (fs‐LSP). Transmission electron microscopy (TEM) analyses reveal LSP‐induced the creation of high‐density stacking faults, dislocation structures, and twin boundaries in ...
Anish Bajla, Shubha Majumder, Subah Mubassira, Ke Xu, Xuanyu Sheng, Joshua A. Medina, Het Jani, Colin McMillen, Luiz G. Jacobsohn, Haiyan Wang, Xinghang Zhang, Shuozhi Xu, Xin Zhao, Yifan Zhang   +13 more
wiley   +1 more source

A Dislocation Perspective on Strength and Toughness in Ceramics

Advanced Engineering Materials, Volume 28, Issue 14, 22 July 2026.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Effect of Carburizing Composite Laser-Shock Processing on Properties and Microstructure of 20CrNiMo Steel

Metals, 2023
In the service process of gears, premature fatigue failure or fracture of gears is often caused by poor surface performance. 20CrNiMo steel is a commonly used material for gears.
Xiuyu Chen, Jie Sun, Kelin Li, Yuru Lin, Zhilong Xu, Bicheng Guo, Junying Chen, Qingshan Jiang   +7 more
doaj   +1 more source