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C2  ·  35 words

Corrosion and material damage in Portuguese

Why things fail long before they break — and what to watch while they do.

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From these 35 words, as many per round as you like — up to all of them: first what is due today, then new ones. First you choose, then you fill the gap, then you write it yourself. Mistakes come back again shortly.

More about this list

The last entry is a pintura de proteção, and the English word that renders it has a second life the Portuguese one has never had. On a bridge, « paint » is simply the material and the job: the protective paint is renewed every ten years, and there is nothing odd about the sentence. Away from the bridge, « paint » has become one of the most productive images in the language. Somebody who has left himself no way out has « painted himself into a corner », and the picture is a floor painted from the door inwards. Something unbearably slow is « like watching paint dry ». A report that describes a grim situation « paints a bleak picture », and a night out that got out of hand is « painting the town red ». None of this travels. Pintar in Portuguese stays with the brush, the wall and the canvas, so every one of those phrases has to be rebuilt out of other materials — ficar sem saída, de uma lentidão desesperante, traçar um quadro sombrio. The specialist word is the half that gives no trouble; the everyday one is where the work is.

The words

Adjective (1)

Grammar for these: Adjective agreement · Where the adjective stands

inoxidávelstainlessAdjectiveC2
O aço inoxidável também enferruja no sítio errado.Stainless steel rusts after all in the wrong place.

Noun (f) (21)

Grammar for these: Definite article: o, a, os, as · Contractions: do, na, ao, pelo

a taxa de corrosãothe corrosion rateNoun (f)C2
A taxa de corrosão duplica junto ao mar.The corrosion rate doubles beside the sea.
a corrosão uniformethe uniform corrosionNoun (f)C2
A corrosão uniforme consome a chapa por igual.Uniform corrosion eats the plate away evenly.
a camada de óxidothe oxide layerNoun (f)C2
A camada de óxido protege o metal por baixo.The oxide layer protects the metal underneath.
a passivaçãothe passivationNoun (f)C2
A passivação forma-se sozinha ao ar.Passivation forms on its own in air.
a proteção catódicathe cathodic protectionNoun (f)C2
A proteção catódica é ligada à conduta enterrada.The cathodic protection is connected to the buried pipeline.
a corrosão por picadasthe pitting corrosionNoun (f)C2
A corrosão por picadas fura a chapa sem a adelgaçar.Pitting corrosion goes through the plate without thinning it.
a frestathe creviceNoun (f)C2
A água fica parada na fresta entre as duas chapas.The water stands still in the crevice between the two plates.
a corrosão sob tensãothe stress corrosion crackingNoun (f)C2
A corrosão sob tensão aparece onde há carga permanente.Stress corrosion cracking appears where a load is permanent.
a fissura por fadigathe fatigue crackNoun (f)C2
A fissura por fadiga começa num canto vivo.The fatigue crack starts at a sharp corner.
a aderência do revestimentothe adhesion of the coatingNoun (f)C2
A aderência do revestimento mede-se com uma grelha de cortes.The adhesion of the coating is measured with a cross-cut grid.
a preparação da superfíciethe surface preparationNoun (f)C2
A preparação da superfície decide o resto.The surface preparation decides everything that follows.
a decapagem por jato abrasivothe abrasive blastingNoun (f)C2
A decapagem por jato abrasivo deixa a superfície áspera.Abrasive blasting leaves the surface rough.
a película de eletrólitothe film of electrolyteNoun (f)C2
Basta uma película de eletrólito para a corrosão avançar.A film of electrolyte is enough for corrosion to advance.
a margem do ponto de orvalhothe dew point marginNoun (f)C2
A margem do ponto de orvalho estava demasiado curta para pintar.The dew point margin was too small for painting.
a duração de serviçothe service lifeNoun (f)C2
A duração de serviço da ponte foi estimada de novo.The service life of the bridge was estimated again.
a medição da espessura da paredethe wall thickness measurementNoun (f)C2
A medição da espessura da parede faz-se por ultrassons.The wall thickness measurement is done by ultrasound.
a zona termicamente afetadathe heat affected zoneNoun (f)C2
A zona termicamente afetada é a parte mais frágil.The heat affected zone is the most fragile part.
a sobreespessura de corrosãothe corrosion allowanceNoun (f)C2
A sobreespessura de corrosão foi somada à parede.The corrosion allowance was added to the wall.
a análise de falhasthe failure analysisNoun (f)C2
A análise de falhas começa pela peça partida.The failure analysis begins with the broken piece.
a decisão de substituiçãothe replacement decisionNoun (f)C2
A decisão de substituição ficou para o verão.The replacement decision was put off until the summer.
a pintura de proteçãothe protective paintNoun (f)C2
A pintura de proteção é renovada de dez em dez anos.The protective paint is renewed every ten years.

Noun (m) (13)

Grammar for these: Definite article: o, a, os, as · Contractions: do, na, ao, pelo

o par galvânicothe galvanic coupleNoun (m)C2
Dois metais diferentes em contacto formam um par galvânico.Two different metals in contact form a galvanic couple.
o ânodo de sacrifíciothe sacrificial anodeNoun (m)C2
O ânodo de sacrifício gasta-se para o casco não se gastar.The sacrificial anode wears away so that the hull does not.
o revestimento anticorrosivothe anti-corrosion coatingNoun (m)C2
O revestimento anticorrosivo levou três demãos.The anti-corrosion coating took three coats.
o primáriothe primerNoun (m)C2
O primário adere melhor ao metal limpo.The primer sticks better to clean metal.
o inibidorthe inhibitorNoun (m)C2
O inibidor é doseado na água do circuito.The inhibitor is dosed into the water of the circuit.
o ensaio de névoa salinathe salt spray testNoun (m)C2
O ensaio de névoa salina dura semanas.The salt spray test runs for weeks.
o intervalo de inspeçãothe inspection intervalNoun (m)C2
O intervalo de inspeção foi encurtado.The inspection interval was shortened.
o ensaio por correntes induzidasthe eddy current testNoun (m)C2
O ensaio por correntes induzidas encontra fendas finas.The eddy current test finds fine cracks.
o ensaio por partículas magnéticasthe magnetic particle testNoun (m)C2
O ensaio por partículas magnéticas só serve para o aço.The magnetic particle test is good for steel only.
o pé do cordão de soldadurathe weld toeNoun (m)C2
A fenda apareceu no pé do cordão de soldadura.The crack appeared at the weld toe.
o certificado de conformidadethe certificate of conformityNoun (m)C2
O certificado de conformidade acompanha cada remessa.The certificate of conformity travels with every consignment.
o elemento de ligathe alloying elementNoun (m)C2
O elemento de liga que interessa aqui é o crómio.The alloying element that matters here is chromium.
o mecanismo de degradaçãothe degradation mechanismNoun (m)C2
O mecanismo de degradação era outro do que se pensava.The degradation mechanism was other than had been thought.

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