Transactions of Materials and Heat Treatment

Title：High temperature deformation behavior and processing map of Cr12

Authors： SHI Jing FANG Xin YANG Yun-min YUAN Guo-dong WANG Yan-lei

Unit： Chongqing University China National Erzhong Group Co.

KeyWords： Cr12 steel thermal deformation behavior flow stress processing map

ClassificationCode：TG144

year,vol(issue):pagenumber：2011,36(3):127-130

Abstract：

TMTS thermal simulation testing machine was used to conduct the experiment of Cr12. Thermal deformation behavior of Cr12 was studied in the temperature of 9001150 ℃ and deformation rate of 0.00110s-1. The results show that the alloy is sensitive to heat and strain rate. And the analysis of process map indicates that Cr12 has two theological unsteady areas. During hot working process when deformation temperature is above 1000℃, strain rate should be controlled under 5s-1; when deformation temperature is between 9001000 ℃, the strain rate should be controlled under 0.03 s-1.

Funds：

Reference：

［1］Spigarelli S. Analysis of high-temperature deformation and microstructure of an AZ31 magnesium alloy[J]. Materials Science and Engineering, 2007,462(4): 197.
［2］Srinivasan N. Hot deformation behaviour of Mg-3Al alloy-A study using processing map[J]. Materials Science and Engineering A,2008, 476(4): 146 .
［3］曾卫东,周义刚,周军，等.加工图理论研究进展[J].稀有金属材料与工程，2006,35(5): 673.
［4］李淼泉,王小津,苏少博，等. GH4169 合金塑性变形行为及加工图[J]. 中国机械工程，2008，（15）: 021.
［5］范永革，汪凌云.AZ31镁合金的中温流变失稳特征[J].中国有色金属学报,2005, 15(10): 1602.
［6］Murty, Narayana S V S, Rao,et al. On the development of instability criteria during hot working with reference to IN 718[J]. Materials Science and Engineering A,1998,254(1/2):76-82.

Service：

【This site has not yet opened Download Service】【Add Favorite】