Ni-Cr合金真空預釬焊金剛石磨粒復合節(jié)塊界面微結(jié)構(gòu)
發(fā)布時間:2018-07-24 21:56
【摘要】:在Ni-Cr合金中加入A合金粉制成復合釬料,在加熱溫度1 050℃和保溫時間30 min的工藝下進行金剛石磨粒的預釬焊處理試驗,在加熱溫度810℃和保溫時間4 min的燒結(jié)工藝下制備預釬焊磨粒復合節(jié)塊.測試預釬焊磨粒的靜壓強度和復合節(jié)塊的抗彎強度,并分析預釬焊金剛石、復合節(jié)塊的界面微結(jié)構(gòu).結(jié)果表明,復合釬料與金剛石磨粒在預釬焊過程中形成化學結(jié)合界面,且對金剛石的熱損傷較小;當磨粒濃度范圍為10%~50%時,復合節(jié)塊的抗彎強度均高于常規(guī)金剛石節(jié)塊;預釬焊金剛石與金屬胎體在燒結(jié)過程中形成冶金結(jié)合界面,復合節(jié)塊界面結(jié)合強度高.
[Abstract]:The composite brazing filler metal was prepared by adding A alloy powder into Ni-Cr alloy. The pre-brazing test of diamond abrasive was carried out under the condition of heating temperature 1 050 鈩,
本文編號:2142775
[Abstract]:The composite brazing filler metal was prepared by adding A alloy powder into Ni-Cr alloy. The pre-brazing test of diamond abrasive was carried out under the condition of heating temperature 1 050 鈩,
本文編號:2142775
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