發(fā)布時間：2018-01-13 02:09

  本文關(guān)鍵詞：超高強度工程結(jié)構(gòu)用鋼的熱處理工藝優(yōu)化　出處：《熱加工工藝》2016年22期 　論文類型：期刊論文

  更多相關(guān)文章： 熱處理工藝 含銦超高強鋼 等溫退火 淬火溫度 回火溫度

【摘要】：采用不同的預(yù)先熱處理、淬火和回火工藝,對含銦超高強度工程結(jié)構(gòu)用鋼進行了熱處理。并分析了顯微組織,測試了拉伸性能和沖擊性能。結(jié)果表明,與常規(guī)退火相比,等溫退火使室溫抗拉強度增加30%,屈服強度增加33%,斷后伸長率增加140%,沖擊韌性增加51%。隨淬火溫度或回火溫度的提高,其室溫抗拉強度、屈服強度、斷后伸長率和沖擊韌性均先提高后降低。預(yù)先熱處理工藝優(yōu)選為等溫退火工藝,淬火溫度優(yōu)選為840℃,回火溫度優(yōu)選為180℃。
[Abstract]:Different pre-heat treatment, quenching and tempering processes were used to heat treat the ultrahigh strength engineering structural steel containing indium. The microstructure of the steel was analyzed, and the tensile and impact properties were tested. Compared with conventional annealing, isothermal annealing increases the tensile strength at room temperature by 30%, the yield strength by 33%, and the elongation after break by 140%%. With the increase of quenching temperature or tempering temperature, the tensile strength and yield strength at room temperature are increased. The elongation and impact toughness increased first and then decreased. The preheat treatment process was optimized as isothermal annealing, quenching temperature was 840 鈩，

本文編號：1416986