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连续退火温度对烘烤硬化钢BH340性能的影响
Influence of Continuous Annealing Temperature on Properties of Bake-Hardening Steel BH340
【Author】 CHEN Li-hong WANG Kai LI Xia LIU Ming-hui (Benxi Iron&Steel Co.Ltd.Benxi 117000)
【机构】 本溪钢铁集团公司;
【摘要】 利用奥钢联 vatron 连续退火热模拟试验机研究了不同连续退火温度对 Nb 处理的烘烤硬化钢 BH340性能的影响。结果表明,随退火温度的升高,BH340的晶粒尺寸变大,第二相 NbC 的固溶度积增大,造成钢板的强度和塑性下降,n 值、r 值和 BH 升高。
【Abstract】 Influence of continuous annealing temperature on properties of BH340 steel added with Nb was studied with a VAI-made vatron continuous annealing simulator.It shows that grain size and solubility of the NbC phase increased with elevation of the annealing temperature.As a result,the strength and ductility decreased,while the related n,r,BH values increased.
【关键词】 烘烤硬化钢;
连续退火温度;
NbC;
组织;
力学性能;
【Key words】 bake-hardening steel; continuous annealing temperature; NbC; microstructure; mechanical property;
【Key words】 bake-hardening steel; continuous annealing temperature; NbC; microstructure; mechanical property;
- 【会议录名称】 第四届中国金属学会青年学术年会论文集
- 【会议名称】第四届中国金属学会青年学术年会
- 【会议时间】2008-10
- 【会议地点】中国北京
- 【分类号】TG161
- 【主办单位】中国金属学会