焊接專(zhuān)業(yè)英語(yǔ)3

1、焊接熱循環(huán)weldthermalcycle焊接溫度場(chǎng)fieldofweldtemperatureweldtemperaturefield準(zhǔn)穩(wěn)定溫度場(chǎng)quasistationarytemperaturefield焊接熱源weldingheatsource點(diǎn)熱源pointheatsource線(xiàn)熱源linearheatsource面熱源planeheatsource瞬時(shí)集中熱源instantaneousconcentrationheatsou

2、rce熱效率thermalefficiency熱能集中系數(shù)coefficientofheatflowconcentration峰值溫度peaktemperature瞬時(shí)冷卻速度momentarycoolingrate冷卻時(shí)間coolingtime置換氧化substitutionaryoxydation擴(kuò)散氧化diffusibleoxydation脫氧desoxydation先期脫氧precedentdesoxydation擴(kuò)散脫氧dif

3、fusibledesoxydation沉淀脫氧precipitationdesoxydation擴(kuò)散氫diffusiblehydrogen初始擴(kuò)散氫initialdiffusiblehydrogen100℃殘余擴(kuò)散氫diffusiblehydrogenremainedat100℃殘余氫residualhydrogen去氫dehydrogenation去氫熱處理heattreatmentfdehydrogenation脫硫desulphu

4、rization脫磷dephosphization滲合金alloying微量合金化microalloying一次結(jié)晶組織primarysolidificationstructure二次結(jié)晶組織secondarysolidificationstructure聯(lián)生結(jié)晶epitaxialsolidification焊縫結(jié)晶形態(tài)solidificationmodeinweldbead結(jié)晶層狀線(xiàn)ripple多邊化邊界polygonizationb

5、oundary結(jié)晶平均線(xiàn)速度meansolidificationrate針狀鐵素體acicularferrite條狀鐵素體lathferrite焊接區(qū)weldzone焊態(tài)aswelded(AW)母材熔化區(qū)fusionzone半熔化區(qū)partialmeltingregion未混合區(qū)unmixedzone熔合區(qū)bondarea熔合線(xiàn)weldjunction(英)；bondline(美)熱影響區(qū)heataffectedzone(HAZ)過(guò)熱區(qū)

6、overheatedzone粗晶區(qū)coarsegrainedregion細(xì)晶區(qū)finegrainedregion過(guò)渡區(qū)transitionzone硬化區(qū)hardenedzone碳當(dāng)量carbonequivalent鉻當(dāng)量chromiumequivalent鎳當(dāng)量nickelequivalent舍夫勒組織圖Schaefflersdiagram德龍組織圖Delong’sdiagram連續(xù)冷卻轉(zhuǎn)變圖（CCT圖）continuouscoolin

7、gtransfmation裂紋敏感性crackingsensibility焊接裂紋weldcrack焊縫裂紋weldmetalcrack焊道裂紋beadcrack弧坑裂紋cratercrack熱影響區(qū)裂紋heataffectedzonecrack縱向裂紋longitudinalcrack橫向裂紋transversecrack微裂紋microcrackmicrofissure熱裂紋hotcrack凝固裂紋solidificationcra