Fatigue Resistance of Self-hardening Aluminium Cast Alloy

Závodská, Denisa; Tillová, Eva; Guagliano, Mario; Kuchariková, Lenka; Chalupová, Mária

doi:10.1016/j.matpr.2017.06.085

Cited by 19 publications

(4 citation statements)

References 15 publications

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“…The intermetallic phases were identified as the Fe-rich phases in form skeleton-like and Cu-rich phases Al2Cu and Al-Al2Cu-Si (Fig. 3), [20][21][22][23][24].…”

Section: Resultsmentioning

confidence: 99%

Consequences of Inappropriate Temperatures of the Solution Heat Treatment in Al-Si-Cu Cast Alloys

Kuchariková

Tillová

Švecová

2020

DDF

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Al-Si-Cu alloy systems have a great importance in the casting industry due to their excellent castability, good mechanical properties and wear resistance. Addition of alloying elements, such as Mg and Cu, makes these alloys heat treatable. Improving of their mechanical properties allows their using in new, more demanding applications (e.g. engines, cylinder heads etc.). The most applied heat treatment for this alloy is a T6 (age hardening). Such a heat treatment is required for precipitation of the Al2Cu hardening dispersed phase that increases the mechanical properties of Al alloys. Therefore, the consequences of different solution heat treatment temperatures 505, 515 and 525 °C for AlSi9Cu3 and 515, 525 and 545 °C for AlSi12Cu1Fe cast alloys, with holding times 2, 4, 8, 16 and 32 hours, were investigated in this study. The effect of solution treatment was evaluated based on changes in microstructure (optical microscopy) and mechanical properties (hardness, impact energy and ultimate tensile strength). The study confirms the strengthening of the experimental alloys caused by application of optimum conditions of T6 and melting of the Cu-rich phases with application of inappropriate solution temperature, as well as distortion and changes of the testing bars.

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“…The intermetallic phases were identified as the Fe-rich phases in form skeleton-like and Cu-rich phases Al2Cu and Al-Al2Cu-Si (Fig. 3), [20][21][22][23][24].…”

Section: Resultsmentioning

confidence: 99%

Consequences of Inappropriate Temperatures of the Solution Heat Treatment in Al-Si-Cu Cast Alloys

Kuchariková

Tillová

Švecová

2020

DDF

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“…However, this is worse in the case of significant disproportionality in the load, where their applicability is limited or only indicative. The paper deals with selected methods of critical plane approach (CPA) as well as with two modifications of the integral approach, which were implemented in FE analyzes [13,15,19,21].…”

Section: Design and Analysis Of Methodologies For Fatigue Damage Dete...mentioning

confidence: 99%

FEM Simulation of Non-proportional Multiaxial Fatigue Damage

et al. 2022

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The paper deals with implementation of the optimizing process into multi-axial rainflow analysis and cumulative damage calculation. It’s presented computational program FEA_FAT compiled in MATLAB. Stress analysis is realized by finite element procedure and the cumulative damage can be calculated by using two fundamental ways – critical plane approach and so called integral approach. Testing example presents random stress analysis and damage prediction of a simple FE model with non-proportional loading.

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“… Newton's methodsthey use the information about first and second differentiation of objective functions and constrains conditions (Fletcher-Powell, conjugate gradient method, etc.). Let's define the optimizing problem of the optimal mass design subjected to the prescribed fatigue life [2,14,16,23,24]. For a structure of multiple elements, the optimization problem of discrete variables can be stated mathematically as minimizing an objective function…”

Section: Structural Mass Minimizing Subjected To Prescribed Fatigue Lifementioning

confidence: 99%

Mass Minimizing of Truss and Beam Structures Subjected to Cumulative Fatigue Damage

et al. 2022

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The work presents the methods and solutions of the optimizing design of the truss and beam structures subjected to the cumulative fatigue damage. Two basic approaches used in the optimization of mechanical systems are presented in the paper - the so-called direct search methods and the gradient methods. A short comparative and gradient approach was made. The aim was to minimize the weight of the truss or beam structure with restrictions affecting the prescribed fatigue life. The computational model assumed only quasi-static loading with different number of cycles.

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Fatigue Resistance of Self-hardening Aluminium Cast Alloy

Cited by 19 publications

References 15 publications

Consequences of Inappropriate Temperatures of the Solution Heat Treatment in Al-Si-Cu Cast Alloys

Consequences of Inappropriate Temperatures of the Solution Heat Treatment in Al-Si-Cu Cast Alloys

FEM Simulation of Non-proportional Multiaxial Fatigue Damage

Mass Minimizing of Truss and Beam Structures Subjected to Cumulative Fatigue Damage

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