热处理对316L/Q235复合板组织与力学性能的影响

 对热轧不锈钢复合板热处理前后状态进行了对比研究，利用扫描电镜对显微组织进行了观察和成分分析，利用维氏硬度计测量了试样硬度，通过剪切、拉伸试验对试样的力学性能进行了研究。结果表明，真空热轧复合板能实现良好复合，碳钢侧为铁素体和珠光体组织；不锈钢侧为奥氏体组织。热处理后试样界面结合性能提高，试样剪切强度、屈服强度和抗拉强度都相应提高。高温阶段快速冷却＋低温阶段缓慢冷却的热处理制度适用于316L/Q235不锈钢复合板热处理。

Effect of heat treatment on microstructure and mechanical properties of 316L/Q235 stainless steel composite panel

The microstructure and mechanical properties of hot rolled stainless steel composite panel was studiedin viewofheat treatment.The microstructure was observed and composition was analyzed by scanning electron microscopy (SEM). The hardness of samples was measured by Vickers. The mechanical properties were studied by shear and tensile test. The results show that vacuum hot rolling canobtain good composite board. The organization in carbon steel side is ferrite and pearlite,and the organizationin stainless steel side is single austenite. After the heat treatment,the perfor-mance of interface combination improves and the shear strength,yield strength and tensile strength increased according-ly. The heat treatment systemthat is fast cooling at high temperature andslow cooling at low temperature is suitable for 316L/Q235 stainless steel composite plate.