發(fā)布時間：2018-12-06 07:36

【摘要】：采用不同的退火、淬火和回火工藝對含銦新型建筑高強(qiáng)鋼棒進(jìn)行了熱處理,并進(jìn)行了拉伸和沖擊試驗。結(jié)果表明:隨退火溫度從880℃提高1000℃,退火時間從2 h延長至6 h,淬火溫度從890℃提高至950℃,淬火時間從10 min延長至50 min,回火溫度從540℃提高至600℃,回火時間從1 h延長至3 h,鋼棒的抗拉強(qiáng)度、屈服強(qiáng)度、斷后伸長率和沖擊吸收功均先增大后減小。優(yōu)化的熱處理工藝為:960℃×4 h退火+920℃×30 min淬火+580℃×2 h回火。
[Abstract]:A new type of building high strength steel bar containing indium was heat-treated by different annealing, quenching and tempering processes, and the tensile and impact tests were carried out. The results show that with the increase of annealing temperature from 880 鈩，

本文編號：2365672