Standard Test Method for Corrosion of Cast Aluminum Alloys in Engine Coolants Under Heat-Rejecting Conditions

Importancia y uso:

4.1 It is essential that engine coolants prevent heat-transfer corrosion of aluminum cylinder heads during engine operation. Any corrosion products formed may deposit on interior radiator surfaces, reducing heat-transfer efficiency of the radiator. Overheating and boil-over of the cooling system may then occur.

4.2 This test method provides a means for selectively screening unused engine coolants and will readily distinguish those coolants that are unsuitable for use with aluminum cylinder head engines. However, satisfactory performance of a coolant in this test method does not ensure adequate long-term service performance. Additional, more comprehensive evaluations with simulated service, dynamometer, and vehicle tests should be used to establish the long-term effectiveness of the coolant.

Subcomité:

D15.06

Referida por:

D7933-22, D7714-11R21, D3306-21, D7518-20, D5752-10R17

Volúmen:

15.05

Número ICS:

77.120.10 (Aluminium and aluminium alloys)

Palabras clave:

aluminum; cast aluminum alloys; cylinder head; engine coolant; heat transfer corrosion ;