45號鋼板通。高溫應力-應變曲線表明:隨65錳鋼板45號鋼板40cr鋼板42crmo鋼板1000℃時,斷面收縮率為85.7%,當拉伸溫度為1250℃時,
對(dui)0.1C應用(yong)5kW連續CO2激(ji)光(guang)(guang)器(qi)對(dui)正火(huo)態45#鋼(gang)(gang)(gang)(gang)(gang)表(biao)(biao)(biao)面(mian)進(jin)(jin)行(xing)(xing)激(ji)光(guang)(guang)相變硬(ying)(ying)(ying)化處(chu)理,采用(yong)金(jin)相顯(xian)(xian)微(wei)(wei)(wei)鏡和(he)(he)顯(xian)(xian)微(wei)(wei)(wei)硬(ying)(ying)(ying)度(du)計(ji)進(jin)(jin)行(xing)(xing)顯(xian)(xian)微(wei)(wei)(wei)組(zu)織(zhi)分析(xi)及硬(ying)(ying)(ying)度(du)測試。結果表(biao)(biao)(biao)明,激(ji)光(guang)(guang)相變硬(ying)(ying)(ying)化后(hou)的剖面(mian)組(zu)織(zhi)可分為完(wan)全淬(cui)硬(ying)(ying)(ying)區（馬氏體(ti)(ti)）、不完(wan)全淬(cui)硬(ying)(ying)(ying)區（馬氏體(ti)(ti)、鐵素體(ti)(ti)和(he)(he)珠光(guang)(guang)體(ti)(ti)）、高溫回火(huo)區（回火(huo)索氏體(ti)(ti)）。激(ji)光(guang)(guang)相變硬(ying)(ying)(ying)化處(chu)理明顯(xian)(xian)提高了(le)正火(huo)態45#鋼(gang)(gang)(gang)(gang)(gang)的硬(ying)(ying)(ying)度(du)。當激(ji)光(guang)(guang)功率一(yi)定時(shi)(shi),隨掃(sao)描速度(du)的增加,淬(cui)硬(ying)(ying)(ying)層(ceng)深度(du)逐漸降(jiang)低,且(qie)在(zai)v=400mm/min和(he)(he)v=1000mm/min時(shi)(shi)表(biao)(biao)(biao)面(mian)硬(ying)(ying)(ying)度(du)分別出現峰值。 利(li)用(yong)脈沖直流等(deng)離(li)(li)(li)子(zi)(zi)(zi)對(dui)45#鋼(gang)(gang)(gang)(gang)(gang)進(jin)(jin)行(xing)(xing)等(deng)離(li)(li)(li)子(zi)(zi)(zi)滲(shen)(shen)(shen)氮(dan)(dan),用(yong)X射線(xian)散射分析(xi)等(deng)離(li)(li)(li)子(zi)(zi)(zi)滲(shen)(shen)(shen)氮(dan)(dan)表(biao)(biao)(biao)面(mian)成分,并測量(liang)了(le)滲(shen)(shen)(shen)氮(dan)(dan)前(qian)后(hou)表(biao)(biao)(biao)面(mian)硬(ying)(ying)(ying)度(du),利(li)用(yong)SRV摩擦磨損(sun)試驗機考(kao)察(cha)45#鋼(gang)(gang)(gang)(gang)(gang)等(deng)離(li)(li)(li)子(zi)(zi)(zi)滲(shen)(shen)(shen)氮(dan)(dan)前(qian)后(hou)在(zai)含磷酸(suan)三(san)甲酚酯、硫化異丁烯和(he)(he)離(li)(li)(li)子(zi)(zi)(zi)液3種潤(run)滑劑(ji)潤(run)滑下的摩擦磨損(sun)性能,通過掃(sao)描電(dian)子(zi)(zi)(zi)顯(xian)(xian)微(wei)(wei)(wei)鏡和(he)(he)X射線(xian)光(guang)(guang)電(dian)子(zi)(zi)(zi)能譜(pu)儀對(dui)3種潤(run)滑劑(ji)的抗(kang)磨減(jian)摩機理進(jin)(jin)行(xing)(xing)分析(xi).結果表(biao)(biao)(biao)明:等(deng)離(li)(li)(li)子(zi)(zi)(zi)滲(shen)(shen)(shen)氮(dan)(dan)后(hou)可以(yi)提高45#鋼(gang)(gang)(gang)(gang)(gang)表(biao)(biao)(biao)面(mian)的硬(ying)(ying)(ying)度(du);在(zai)磷酸(suan)三(san)甲酚酯、硫化異丁烯和(he)(he)離(li)(li)(li)子(zi)(zi)(zi)液潤(run)滑下,其(qi)抗(kang)磨性能大(da)幅度(du)提高,等(deng)離(li)(li)(li)子(zi)(zi)(zi)滲(shen)(shen)(shen)氮(dan)(dan)層(ceng)具有(you)良(liang)好的抗(kang)磨性能,其(qi)中1-丙基-3-辛基咪唑(zuo)六氟磷酸(suan)鹽(yan)離(li)(li)(li)子(zi)(zi)(zi)液具有(you)優良(liang)的抗(kang)磨減(jian)摩性能.這是由于潤(run)滑油(you)中活(huo)性元素與滲(shen)(shen)(shen)氮(dan)(dan)層(ceng)協同作用(yong)的結果. ;42crmo鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)65錳(meng)鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)45號鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)40cr鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)42crmo鋼(gang)(gang)(gang)(gang)(gang)板(ban)(ban)