The results indicated that the boundary angle of subgrains increases with the precipitate spacing after holding.
晶界角度测试结果表明，保温后亚晶的平均晶界角度随析出相间距而增大。
2
The results show that Widmansttten structure needle consists of many blocky subgrains that have higher dislocation density and subgrain boundary is made up of dislocation tangle.