Effect of Solid Solution Treatment on the Structure and Properties of 4J29 Low Expansion Alloy
The effect of different solid solution treatment processes on the microstructure,hardness,and thermal expansion performance of 4J29 alloy was studied.The results indicate that as the solid solution temperature and holding time increase,the austenite grain size gradually increases;Changing the cooling method for solution treatment has no effect on the microstructure and hardness of the alloy.The secondary solid solution treatment process has no effect on the microstructure and hardness,but reduces the linear expansion coefficient of the alloy.
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