Cr13型耐蚀塑料模具钢退火组织的均匀化
Annealing Microstructure Homogenization of Cr13 Corrosion Resistant Plastic Die Steel
摘 要
为得到均匀的珠光体球化组织，对三种Cr13型耐蚀塑料模具钢进行了退火组织研究，采用六种不同的热处理工艺对比分析。结果表明：420MOD钢的最佳退火球化工艺为830℃+760℃等温退火，1.2083钢的最佳退火球化工艺为960℃淬火+830℃+760℃等温退火，FT64钢的最佳退火球化工艺为960℃淬火+870℃退火；420MOD钢和1.2083钢应避开870℃左右的温度段，在此阶段会形成片状珠光体和链状组织；FT64钢退火前采用淬火处理可消除带状分布的二次碳化物。
均匀化
球化组织
annealing
homogenization
spheroidization microstructure
Abstract
In this paper, annealing microstructure of three types of Cr13 corrosion resistant plastic die steel were researched, contrast and analysis of six different heat treatment process, in order to get homogeneous pearlite spheroidization microstructure. The results show that, the best spheroidizing annealing process of 420MOD steel was isothermal annealing of 830℃+760℃, the best spheroidizing annealing process of 1.2083 steel was quenching of 960℃ add isothermal annealing of 830℃+760℃, the best spheroidizing annealing process of FT64 steel was quenching of 960℃ add annealing of 870℃. 420MOD and 1.2083steel should avoid preservation period of about 870℃,to form lamellar pearlite and chain microstructure at this stage. The quenching process before FT64 steel annealing could eliminate banding distribution of secondary carbides.
中图分类号 TG142.45
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备注刘明(1987-),硕士,工程师,从事模具材料研发
引用该论文: LIU Ming,FENG Shuling,MA Ye. Annealing Microstructure Homogenization of Cr13 Corrosion Resistant Plastic Die Steel[J]. Materials for mechancial engineering, 2017, 41(Z2): 57～61
刘明,冯淑玲,马野. Cr13型耐蚀塑料模具钢退火组织的均匀化[J]. 机械工程材料, 2017, 41(Z2): 57～61
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参考文献
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【2】XU Ming, LI Liu-he, LIU You-ming, et al. Mechanism ofMechanical Property Enhancement in Nitrogen and Titanium Implanted 321 Stainless Steel[J]. Materials Science and Engineering, 2006, 425A:1-6.
【3】耿鸿明,吴晓春.铜、硫元素对4Cr13不锈钢切削性能及耐腐蚀性能的影响[J].钢铁研究学报,2008,20(8):42-45.
【4】崔忠圻,覃耀春.金属学与热处理[M].北京:机械工业出版社,2007:259-263.
【5】崔振铎,刘华山.金属材料及热处理[M].长沙:中南大学出版社,2010:50-57.
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