Microstructure and Mechanical Properties of an Ultrahigh Strength Dual Phase Steel Developed by Intercritical Annealing

摘要：

　　The influence of intercritical annealing temperature on microstructure and mechanical properties of a 1000MPa dual phase steel was investigated.The volume fraction of martensite increases when increasing the intercritical annealing temperature; under the appropriate intercritical annealing conditions,the microstructure of the DP steel consisted of nearly equiaxed ferrite and uniformly distributed martensite islands.The variations of hardness,strength,elongation and fracture mechanism of the specimens with variation of the intercritical annealing temperature were correlated to microstructural features.

关键词： dual phase steel intercritical heat treatment microstructure mechanical properties fracture

作者: LI Wei SPEER John G WANG Li

作者单位: Research Institute, Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China;State Key Laboratory for Advanced Steel Processing and Products Research Center, Colorado School of Mines, 1500 Illinois St., Research Institute, Baoshan Iron & Steel Co., Ltd., Shanghai 201900, China;State Key Laboratory for

会议类型: 国际会议

会议名称: the 1st International Conference on Automobile Steel & The 3rd International Conference on High Manganese Steels (第一届国际汽车用钢大会暨第三届高锰钢国际会议)

会议地点: 成都

会议语种:英文

页码: 394-397

在线出版日期: 2016-11-16（万方平台首次上网日期，不代表论文的发表时间）