دراسة تأثير أوساط التقسية البوليمرية على بعض الخواص لسبيكة الفولاذ الواطئ السبائكية نوع (St 37)‎

Abstract EN

This study is concerned with the effect of polymer quenching on some properties of low alloy steel type (St37).

Three different operations of heat treatment have been done including quenching, quenching with tempering and quenching with freezing.

A comparison has been done between the effect of polymeric quenchant i.e.

water solution of poly vinyl alcohol (PVA) and the conventional quenchants represented by distilled water, engine oil and food oil in having better properties.

Tests have been done to the original and heat treated specimens which were Brinell hardness test, wear rate test and thermal conductivity test.

Results had revealed that the heat treatments generally enhance the properties especially the treatment of quenching with freezing and in most cases the polymeric quenchants gave better results than the conventional quenchants.

Also a simulation to the results of the experimental work has been done by using the Visual Basic language, and the results gave us an indication to the behaviour of specimens’ properties at different concentrations of polymeric quenchants over the range used in the experimental work, beside the great possibilities of the program in display the experiments which help in training engineers in heat treatment and testing fields.