Hydrogen (cas 1333-74-0) partitioning behavior and related Hydrogen (cas 1333-74-0) embrittlement in Al-Zn-Mg alloys
-
Add time:09/07/2019 Source:sciencedirect.com
To develop high strength Al-Zn-Mg alloys, suppression of Hydrogen (cas 1333-74-0) embrittlement is indispensable. The hydrogen embrittlement behavior of different prepared Al-10.1-1.2Mg alloys with various hydrogen trap sites was observed using in situ synchrotron X-ray tomography in this study. Furthermore, we quantified the hydrogen partitioning based on hydrogen occupancies and hydrogen trap site densities in the prepared alloys. The combined analysis of hydrogen embrittlement and hydrogen partitioning showed that initial trapped hydrogen content in grain boundaries, vacancies, and dislocations before deformation was not crucial for inducing both intergranular fracture and quasi-cleavage fracture. However, hydrogen accumulates at grain boundaries and precipitate interfaces during deformation, inducing intergranular and quasi-cleavage fracture, respectively. Due to hydrogen accumulation, intergranular and quasi-cleavage fracture initiate when the hydrogen content at the grain boundary enriches 103–104 times the initial content and hydrogen content at the precipitate interface enriches 3.9 × 102 times the initial content, respectively. The change in hydrogen trap sites by processing and heat treatments did not suppress the intergranular and quasi-cleavage fracture. We conclude that generating new hydrogen trap sites (e.g., the interior of the intermetallic particle) in which hydrogen trap site density and binding energy are higher than the precipitate interface (>33.87 kJ/mol) is beneficial to suppress hydrogen embrittlement.
We also recommend Trading Suppliers and Manufacturers of Hydrogen (cas 1333-74-0). Pls Click Website Link as below: cas 1333-74-0 suppliers
Prev:Hazardous properties of Hydrogen (cas 1333-74-0) and Hydrogen (cas 1333-74-0) containing fuel gases
Next:Hydrogen (cas 1333-74-0) hydrate cage occupancy: A key parameter for Hydrogen (cas 1333-74-0) storage and transport) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Hydrogen (cas 1333-74-0) hydrate cage occupancy: A key parameter for Hydrogen (cas 1333-74-0) storage and transport09/08/2019
- Hazardous properties of Hydrogen (cas 1333-74-0) and Hydrogen (cas 1333-74-0) containing fuel gases09/06/2019
- Hydrogen (cas 1333-74-0) storage on cross stacking nanocones09/05/2019
- Effects of internal Hydrogen (cas 1333-74-0) and surface-absorbed Hydrogen (cas 1333-74-0) on the Hydrogen (cas 1333-74-0) embrittlement of X80 pipeline steel09/04/2019
- Electrochemical Hydrogen (cas 1333-74-0) charging to simulate Hydrogen (cas 1333-74-0) flaking in pressure vessel steels09/03/2019
- Optimization of the Hydrogen (cas 1333-74-0) separator based on the Hydrogen (cas 1333-74-0) network integration09/02/2019
- Hydrogen (cas 1333-74-0) storage materials for Hydrogen (cas 1333-74-0) and energy carriers09/01/2019
- Thermodynamics analysis of Hydrogen (cas 1333-74-0) storage based on compressed gaseous Hydrogen (cas 1333-74-0), liquid Hydrogen (cas 1333-74-0) and cryo-compressed Hydrogen (cas 1333-74-0)08/31/2019
- Hydrogen (cas 1333-74-0) informed Gurson model for Hydrogen (cas 1333-74-0) embrittlement simulation08/30/2019
-
Health and Chemical more >
-
Related Products