The effect of TiN inclusions on the fracture mechanism of 20CrMnTi steel with lath martensite
This study aims to investigate the effect of TiN inclusions on the fracture mechanism of 20CrMnTi steel with martensite. Size of martensite packets, blocks and TiN inclusions were characterized, and the room-temperature tensile properties, impact ...
Yong Zhu +3 more
doaj +1 more source
The Combined Influence of Molybdenum and Nickel in Steel Welds [PDF]
Weld metal deposit (WMD) was carried out for standard MMA welding process. This welding method is still promising mainly due to the high amount of AF (acicular ferrite) and low amount of MAC (self-tempered martensite, retained austenite, carbide) phases ...
B. Szczucka-Lasota +3 more
doaj +1 more source
Effect of Post-Heat Treatment on the Impact Toughness and Crack Propagation Mechanism of AISI D2 Tool Steel Manufactured by Direct Energy Deposition [PDF]
This study investigated the effect of heat treatment on the microstructure and impact toughness property of AISI D2 manufactured with direct energy deposition (DED) and compared the results with conventional wrought material.
Jung-Hyun Park +5 more
doaj +1 more source
Effect of delta ferrites on the anisotropy of impact toughness in martensitic heat-resistant steel
To avoid brittle failure of the final-stage turbine blades, it is necessary to understand the anisotropy mechanism in martensitic heat-resistant steel 10Cr12Ni3Mo2VN.
Junru Li +4 more
doaj +1 more source
Characteristic Property of Impact Fracture Toughness
Impact fracture experiments were performed using three CT type specimens made of PMMA with the size ratio 1 : 2 : 3 with analogous geometry. A precrack was introduced artificially in each specimen, which was subjected to impact by a wedge bar. The flyer was accelerated by a gas gun to impose an impact force to the wedge bar, and the fracture behavior ...
Ichiro Maekawa, Hiroshi Shibata
openaire +3 more sources
Effect of Silicon Content on Carbide Precipitation and Low-Temperature Toughness of Pressure Vessel Steels [PDF]
Cr – Mn – Mo – Ni pressure vessel steels containing 0.54 and 1.55% Si are studied. Metallographic and fractographic analyses of the steels after tempering at 650 and 700°C are performed.
A Gustafson +27 more
core +1 more source
Multiscale hybrid micro-nanocomposites based on carbon nanotubes and carbon fibers [PDF]
Amino-modified double wall carbon nanotube (DWCNT-NH2)/carbon fiber (CF)/epoxy hybrid micro-nanocomposite laminates were prepared by a resin infusion technique.
Inam, Fawad +3 more
core +3 more sources
Study of the Effect of Multiple Tempering on the Impact Toughness of Forged S690 Structural Steel
During the production of forged metal components, the sequence of heat treatments that are carried out, as well as hot working, remarkably influences mechanical properties of the product, in particular impact toughness.
Luca Pezzato +8 more
doaj +1 more source
Experimental study on recycled steel fiber-reinforced concrete under repeated impact
Recycled steel fiber comes from the waste produced by machining. Adding recycled steel fiber into concrete can significantly enhance the toughness of concrete.
Gao Yongtao +7 more
doaj +1 more source
Elevated-temperature impact toughness of Mg–(Gd, Y)–Zr alloy [PDF]
The Charpy impact results for Mg–10Gd–3Y–0.5Zr and Mg–11Y–5Gd–2Zn–0.5Zr alloys at various temperatures showed that Mg–10Gd–3Y–0.5Zr was more sensitive to temperature. The increase in impact toughness with temperature was related to the blunt crack-tip at
Anyanwu +24 more
core +1 more source

